Home / 8,216.75-11,339.12-5,277.87

Finding the Fourth Proportional to 8,216.75, 11,339.12 and 5,277.87

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Solution

The fourth proportional to 8,216.75, 11,339.12 and 5,277.87 is: 7,283.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.75 : 11,339.12 = 5,277.87 : x
  2. Step 2: Convert to fraction form
    8,216.75/11,339.12 = 5,277.87/x
  3. Step 3: Cross multiply
    8,216.75x = 11,339.12 × 5,277.87
  4. Step 4: Simplify right side
    8,216.75x = 59,846,374.89
  5. Step 5: Solve for x
    x = 59,846,374.89/8,216.75
  6. Step 6: Final answer
    x = 7,283.46

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Find fourth proportional to 4,108.38, 5,669.56 and 2,638.94
Half scale
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Double scale
Find fourth proportional to 8,217.75, 11,340.50 and 5,278.87
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.