Home / 15,590.45-21,514.80-8,516.87

Finding the Fourth Proportional to 15,590.45, 21,514.80 and 8,516.87

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Solution

The fourth proportional to 15,590.45, 21,514.80 and 8,516.87 is: 11,753.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.45 : 21,514.80 = 8,516.87 : x
  2. Step 2: Convert to fraction form
    15,590.45/21,514.80 = 8,516.87/x
  3. Step 3: Cross multiply
    15,590.45x = 21,514.80 × 8,516.87
  4. Step 4: Simplify right side
    15,590.45x = 183,238,754.68
  5. Step 5: Solve for x
    x = 183,238,754.68/15,590.45
  6. Step 6: Final answer
    x = 11,753.27

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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.