Home / 10,242.35-15,369.50-4,318.88

Finding the Fourth Proportional to 10,242.35, 15,369.50 and 4,318.88

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Solution

The fourth proportional to 10,242.35, 15,369.50 and 4,318.88 is: 6,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.35 : 15,369.50 = 4,318.88 : x
  2. Step 2: Convert to fraction form
    10,242.35/15,369.50 = 4,318.88/x
  3. Step 3: Cross multiply
    10,242.35x = 15,369.50 × 4,318.88
  4. Step 4: Simplify right side
    10,242.35x = 66,378,960.11
  5. Step 5: Solve for x
    x = 66,378,960.11/10,242.35
  6. Step 6: Final answer
    x = 6,480.83

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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.