Home / 10,311.38-15,469.34-4,387.95

Finding the Fourth Proportional to 10,311.38, 15,469.34 and 4,387.95

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Solution

The fourth proportional to 10,311.38, 15,469.34 and 4,387.95 is: 6,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.38 : 15,469.34 = 4,387.95 : x
  2. Step 2: Convert to fraction form
    10,311.38/15,469.34 = 4,387.95/x
  3. Step 3: Cross multiply
    10,311.38x = 15,469.34 × 4,387.95
  4. Step 4: Simplify right side
    10,311.38x = 67,878,690.45
  5. Step 5: Solve for x
    x = 67,878,690.45/10,311.38
  6. Step 6: Final answer
    x = 6,582.89

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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.