Home / 15,516.38-23,279.16-8,947.28

Finding the Fourth Proportional to 15,516.38, 23,279.16 and 8,947.28

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Solution

The fourth proportional to 15,516.38, 23,279.16 and 8,947.28 is: 13,423.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.38 : 23,279.16 = 8,947.28 : x
  2. Step 2: Convert to fraction form
    15,516.38/23,279.16 = 8,947.28/x
  3. Step 3: Cross multiply
    15,516.38x = 23,279.16 × 8,947.28
  4. Step 4: Simplify right side
    15,516.38x = 208,285,046.29
  5. Step 5: Solve for x
    x = 208,285,046.29/15,516.38
  6. Step 6: Final answer
    x = 13,423.56

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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.