Home / 10,178.39-15,257.85-6,469.13

Finding the Fourth Proportional to 10,178.39, 15,257.85 and 6,469.13

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Solution

The fourth proportional to 10,178.39, 15,257.85 and 6,469.13 is: 9,697.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.39 : 15,257.85 = 6,469.13 : x
  2. Step 2: Convert to fraction form
    10,178.39/15,257.85 = 6,469.13/x
  3. Step 3: Cross multiply
    10,178.39x = 15,257.85 × 6,469.13
  4. Step 4: Simplify right side
    10,178.39x = 98,704,938.88
  5. Step 5: Solve for x
    x = 98,704,938.88/10,178.39
  6. Step 6: Final answer
    x = 9,697.50

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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.