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Finding the Fourth Proportional to 15,908.85, 23,863.28 and 8,116.65

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Solution

The fourth proportional to 15,908.85, 23,863.28 and 8,116.65 is: 12,174.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.85 : 23,863.28 = 8,116.65 : x
  2. Step 2: Convert to fraction form
    15,908.85/23,863.28 = 8,116.65/x
  3. Step 3: Cross multiply
    15,908.85x = 23,863.28 × 8,116.65
  4. Step 4: Simplify right side
    15,908.85x = 193,689,851.03
  5. Step 5: Solve for x
    x = 193,689,851.03/15,908.85
  6. Step 6: Final answer
    x = 12,174.98

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Similar ratio
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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.