Home / 10,144.62-15,209.10-6,439.14

Finding the Fourth Proportional to 10,144.62, 15,209.10 and 6,439.14

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Solution

The fourth proportional to 10,144.62, 15,209.10 and 6,439.14 is: 9,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.62 : 15,209.10 = 6,439.14 : x
  2. Step 2: Convert to fraction form
    10,144.62/15,209.10 = 6,439.14/x
  3. Step 3: Cross multiply
    10,144.62x = 15,209.10 × 6,439.14
  4. Step 4: Simplify right side
    10,144.62x = 97,933,524.17
  5. Step 5: Solve for x
    x = 97,933,524.17/10,144.62
  6. Step 6: Final answer
    x = 9,653.74

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1.5x scale

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.