Home / 10,905.12-15,049.20-5,937.12

Finding the Fourth Proportional to 10,905.12, 15,049.20 and 5,937.12

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Solution

The fourth proportional to 10,905.12, 15,049.20 and 5,937.12 is: 8,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.12 : 15,049.20 = 5,937.12 : x
  2. Step 2: Convert to fraction form
    10,905.12/15,049.20 = 5,937.12/x
  3. Step 3: Cross multiply
    10,905.12x = 15,049.20 × 5,937.12
  4. Step 4: Simplify right side
    10,905.12x = 89,348,906.30
  5. Step 5: Solve for x
    x = 89,348,906.30/10,905.12
  6. Step 6: Final answer
    x = 8,193.30

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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.