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Finding the Fourth Proportional to 8,531.59, 11,772.79 and 6,294.71

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Solution

The fourth proportional to 8,531.59, 11,772.79 and 6,294.71 is: 8,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.59 : 11,772.79 = 6,294.71 : x
  2. Step 2: Convert to fraction form
    8,531.59/11,772.79 = 6,294.71/x
  3. Step 3: Cross multiply
    8,531.59x = 11,772.79 × 6,294.71
  4. Step 4: Simplify right side
    8,531.59x = 74,106,298.94
  5. Step 5: Solve for x
    x = 74,106,298.94/8,531.59
  6. Step 6: Final answer
    x = 8,686.11

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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.