Home / 10,343.80-15,519.30-4,502.20

Finding the Fourth Proportional to 10,343.80, 15,519.30 and 4,502.20

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Solution

The fourth proportional to 10,343.80, 15,519.30 and 4,502.20 is: 6,754.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.80 : 15,519.30 = 4,502.20 : x
  2. Step 2: Convert to fraction form
    10,343.80/15,519.30 = 4,502.20/x
  3. Step 3: Cross multiply
    10,343.80x = 15,519.30 × 4,502.20
  4. Step 4: Simplify right side
    10,343.80x = 69,870,992.46
  5. Step 5: Solve for x
    x = 69,870,992.46/10,343.80
  6. Step 6: Final answer
    x = 6,754.87

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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.