Home / 8,462.75-11,678.28-4,685.84

Finding the Fourth Proportional to 8,462.75, 11,678.28 and 4,685.84

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Solution

The fourth proportional to 8,462.75, 11,678.28 and 4,685.84 is: 6,466.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,462.75 : 11,678.28 = 4,685.84 : x
  2. Step 2: Convert to fraction form
    8,462.75/11,678.28 = 4,685.84/x
  3. Step 3: Cross multiply
    8,462.75x = 11,678.28 × 4,685.84
  4. Step 4: Simplify right side
    8,462.75x = 54,722,551.56
  5. Step 5: Solve for x
    x = 54,722,551.56/8,462.75
  6. Step 6: Final answer
    x = 6,466.28

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Half scale
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Double scale
Find fourth proportional to 8,463.75, 11,679.66 and 4,686.84
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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.