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Finding the Fourth Proportional to 10,479.51, 15,718.05 and 9,901.17

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Solution

The fourth proportional to 10,479.51, 15,718.05 and 9,901.17 is: 14,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.51 : 15,718.05 = 9,901.17 : x
  2. Step 2: Convert to fraction form
    10,479.51/15,718.05 = 9,901.17/x
  3. Step 3: Cross multiply
    10,479.51x = 15,718.05 × 9,901.17
  4. Step 4: Simplify right side
    10,479.51x = 155,627,085.12
  5. Step 5: Solve for x
    x = 155,627,085.12/10,479.51
  6. Step 6: Final answer
    x = 14,850.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.