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Finding the Fourth Proportional to 11,324.71, 16,987.08 and 3,929.17

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Solution

The fourth proportional to 11,324.71, 16,987.08 and 3,929.17 is: 5,893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.71 : 16,987.08 = 3,929.17 : x
  2. Step 2: Convert to fraction form
    11,324.71/16,987.08 = 3,929.17/x
  3. Step 3: Cross multiply
    11,324.71x = 16,987.08 × 3,929.17
  4. Step 4: Simplify right side
    11,324.71x = 66,745,125.12
  5. Step 5: Solve for x
    x = 66,745,125.12/11,324.71
  6. Step 6: Final answer
    x = 5,893.76

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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.