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Finding the Fourth Proportional to 6,691.75, 10,088.97 and 6,240.05

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Solution

The fourth proportional to 6,691.75, 10,088.97 and 6,240.05 is: 9,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.75 : 10,088.97 = 6,240.05 : x
  2. Step 2: Convert to fraction form
    6,691.75/10,088.97 = 6,240.05/x
  3. Step 3: Cross multiply
    6,691.75x = 10,088.97 × 6,240.05
  4. Step 4: Simplify right side
    6,691.75x = 62,955,677.25
  5. Step 5: Solve for x
    x = 62,955,677.25/6,691.75
  6. Step 6: Final answer
    x = 9,407.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.