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Finding the Fourth Proportional to 8,324.76, 11,488.14 and 4,787.94

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Solution

The fourth proportional to 8,324.76, 11,488.14 and 4,787.94 is: 6,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.76 : 11,488.14 = 4,787.94 : x
  2. Step 2: Convert to fraction form
    8,324.76/11,488.14 = 4,787.94/x
  3. Step 3: Cross multiply
    8,324.76x = 11,488.14 × 4,787.94
  4. Step 4: Simplify right side
    8,324.76x = 55,004,525.03
  5. Step 5: Solve for x
    x = 55,004,525.03/8,324.76
  6. Step 6: Final answer
    x = 6,607.34

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Find fourth proportional to 4,162.38, 5,744.07 and 2,393.97
Half scale
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Double scale
Find fourth proportional to 8,325.76, 11,489.52 and 4,788.94
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.