Home / 12,613.86-18,937.26-8,472.33

Finding the Fourth Proportional to 12,613.86, 18,937.26 and 8,472.33

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Solution

The fourth proportional to 12,613.86, 18,937.26 and 8,472.33 is: 12,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.86 : 18,937.26 = 8,472.33 : x
  2. Step 2: Convert to fraction form
    12,613.86/18,937.26 = 8,472.33/x
  3. Step 3: Cross multiply
    12,613.86x = 18,937.26 × 8,472.33
  4. Step 4: Simplify right side
    12,613.86x = 160,442,716.02
  5. Step 5: Solve for x
    x = 160,442,716.02/12,613.86
  6. Step 6: Final answer
    x = 12,719.56

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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.