Home / 15,590.38-21,514.80-8,516.92

Finding the Fourth Proportional to 15,590.38, 21,514.80 and 8,516.92

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Solution

The fourth proportional to 15,590.38, 21,514.80 and 8,516.92 is: 11,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.38 : 21,514.80 = 8,516.92 : x
  2. Step 2: Convert to fraction form
    15,590.38/21,514.80 = 8,516.92/x
  3. Step 3: Cross multiply
    15,590.38x = 21,514.80 × 8,516.92
  4. Step 4: Simplify right side
    15,590.38x = 183,239,830.42
  5. Step 5: Solve for x
    x = 183,239,830.42/15,590.38
  6. Step 6: Final answer
    x = 11,753.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.