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Finding the Fourth Proportional to 10,347.52, 15,521.28 and 8,516.12

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Solution

The fourth proportional to 10,347.52, 15,521.28 and 8,516.12 is: 12,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.52 : 15,521.28 = 8,516.12 : x
  2. Step 2: Convert to fraction form
    10,347.52/15,521.28 = 8,516.12/x
  3. Step 3: Cross multiply
    10,347.52x = 15,521.28 × 8,516.12
  4. Step 4: Simplify right side
    10,347.52x = 132,181,083.03
  5. Step 5: Solve for x
    x = 132,181,083.03/10,347.52
  6. Step 6: Final answer
    x = 12,774.18

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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.