Home / 10,340.28-15,508.96-3,320.90

Finding the Fourth Proportional to 10,340.28, 15,508.96 and 3,320.90

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Solution

The fourth proportional to 10,340.28, 15,508.96 and 3,320.90 is: 4,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.28 : 15,508.96 = 3,320.90 : x
  2. Step 2: Convert to fraction form
    10,340.28/15,508.96 = 3,320.90/x
  3. Step 3: Cross multiply
    10,340.28x = 15,508.96 × 3,320.90
  4. Step 4: Simplify right side
    10,340.28x = 51,503,688.66
  5. Step 5: Solve for x
    x = 51,503,688.66/10,340.28
  6. Step 6: Final answer
    x = 4,980.88

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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.