Home / 15,003.38-22,511.56-8,419.70

Finding the Fourth Proportional to 15,003.38, 22,511.56 and 8,419.70

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Solution

The fourth proportional to 15,003.38, 22,511.56 and 8,419.70 is: 12,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.38 : 22,511.56 = 8,419.70 : x
  2. Step 2: Convert to fraction form
    15,003.38/22,511.56 = 8,419.70/x
  3. Step 3: Cross multiply
    15,003.38x = 22,511.56 × 8,419.70
  4. Step 4: Simplify right side
    15,003.38x = 189,540,581.73
  5. Step 5: Solve for x
    x = 189,540,581.73/15,003.38
  6. Step 6: Final answer
    x = 12,633.19

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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.