Home / 10,306.20-15,460.38-3,379.08

Finding the Fourth Proportional to 10,306.20, 15,460.38 and 3,379.08

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Solution

The fourth proportional to 10,306.20, 15,460.38 and 3,379.08 is: 5,068.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.20 : 15,460.38 = 3,379.08 : x
  2. Step 2: Convert to fraction form
    10,306.20/15,460.38 = 3,379.08/x
  3. Step 3: Cross multiply
    10,306.20x = 15,460.38 × 3,379.08
  4. Step 4: Simplify right side
    10,306.20x = 52,241,860.85
  5. Step 5: Solve for x
    x = 52,241,860.85/10,306.20
  6. Step 6: Final answer
    x = 5,068.97

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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.