Home / 15,514.38-21,414.26-9,144.68

Finding the Fourth Proportional to 15,514.38, 21,414.26 and 9,144.68

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Solution

The fourth proportional to 15,514.38, 21,414.26 and 9,144.68 is: 12,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.38 : 21,414.26 = 9,144.68 : x
  2. Step 2: Convert to fraction form
    15,514.38/21,414.26 = 9,144.68/x
  3. Step 3: Cross multiply
    15,514.38x = 21,414.26 × 9,144.68
  4. Step 4: Simplify right side
    15,514.38x = 195,826,402.34
  5. Step 5: Solve for x
    x = 195,826,402.34/15,514.38
  6. Step 6: Final answer
    x = 12,622.25

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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.