Home / 10,254.20-15,380.69-3,678.62

Finding the Fourth Proportional to 10,254.20, 15,380.69 and 3,678.62

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Solution

The fourth proportional to 10,254.20, 15,380.69 and 3,678.62 is: 5,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.20 : 15,380.69 = 3,678.62 : x
  2. Step 2: Convert to fraction form
    10,254.20/15,380.69 = 3,678.62/x
  3. Step 3: Cross multiply
    10,254.20x = 15,380.69 × 3,678.62
  4. Step 4: Simplify right side
    10,254.20x = 56,579,618.55
  5. Step 5: Solve for x
    x = 56,579,618.55/10,254.20
  6. Step 6: Final answer
    x = 5,517.70

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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.