Home / 15,040.10-20,755.19-8,325.92

Finding the Fourth Proportional to 15,040.10, 20,755.19 and 8,325.92

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Solution

The fourth proportional to 15,040.10, 20,755.19 and 8,325.92 is: 11,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.10 : 20,755.19 = 8,325.92 : x
  2. Step 2: Convert to fraction form
    15,040.10/20,755.19 = 8,325.92/x
  3. Step 3: Cross multiply
    15,040.10x = 20,755.19 × 8,325.92
  4. Step 4: Simplify right side
    15,040.10x = 172,805,906.12
  5. Step 5: Solve for x
    x = 172,805,906.12/15,040.10
  6. Step 6: Final answer
    x = 11,489.68

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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.