Home / 10,613.45-15,918.13-10,086.61

Finding the Fourth Proportional to 10,613.45, 15,918.13 and 10,086.61

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Solution

The fourth proportional to 10,613.45, 15,918.13 and 10,086.61 is: 15,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.45 : 15,918.13 = 10,086.61 : x
  2. Step 2: Convert to fraction form
    10,613.45/15,918.13 = 10,086.61/x
  3. Step 3: Cross multiply
    10,613.45x = 15,918.13 × 10,086.61
  4. Step 4: Simplify right side
    10,613.45x = 160,559,969.24
  5. Step 5: Solve for x
    x = 160,559,969.24/10,613.45
  6. Step 6: Final answer
    x = 15,127.97

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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.