Home / 15,407.20-21,261.92-8,333.62

Finding the Fourth Proportional to 15,407.20, 21,261.92 and 8,333.62

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Solution

The fourth proportional to 15,407.20, 21,261.92 and 8,333.62 is: 11,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.20 : 21,261.92 = 8,333.62 : x
  2. Step 2: Convert to fraction form
    15,407.20/21,261.92 = 8,333.62/x
  3. Step 3: Cross multiply
    15,407.20x = 21,261.92 × 8,333.62
  4. Step 4: Simplify right side
    15,407.20x = 177,188,761.75
  5. Step 5: Solve for x
    x = 177,188,761.75/15,407.20
  6. Step 6: Final answer
    x = 11,500.39

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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.