Home / 10,402.30-15,604.91-3,380.06

Finding the Fourth Proportional to 10,402.30, 15,604.91 and 3,380.06

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Solution

The fourth proportional to 10,402.30, 15,604.91 and 3,380.06 is: 5,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402.30 : 15,604.91 = 3,380.06 : x
  2. Step 2: Convert to fraction form
    10,402.30/15,604.91 = 3,380.06/x
  3. Step 3: Cross multiply
    10,402.30x = 15,604.91 × 3,380.06
  4. Step 4: Simplify right side
    10,402.30x = 52,745,532.09
  5. Step 5: Solve for x
    x = 52,745,532.09/10,402.30
  6. Step 6: Final answer
    x = 5,070.56

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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.