Home / 26,131.12-39,201.56-8,613.28

Finding the Fourth Proportional to 26,131.12, 39,201.56 and 8,613.28

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Solution

The fourth proportional to 26,131.12, 39,201.56 and 8,613.28 is: 12,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.12 : 39,201.56 = 8,613.28 : x
  2. Step 2: Convert to fraction form
    26,131.12/39,201.56 = 8,613.28/x
  3. Step 3: Cross multiply
    26,131.12x = 39,201.56 × 8,613.28
  4. Step 4: Simplify right side
    26,131.12x = 337,654,012.72
  5. Step 5: Solve for x
    x = 337,654,012.72/26,131.12
  6. Step 6: Final answer
    x = 12,921.53

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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.