Home / 10,310.04-15,469.92-5,115.24

Finding the Fourth Proportional to 10,310.04, 15,469.92 and 5,115.24

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Solution

The fourth proportional to 10,310.04, 15,469.92 and 5,115.24 is: 7,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,310.04 : 15,469.92 = 5,115.24 : x
  2. Step 2: Convert to fraction form
    10,310.04/15,469.92 = 5,115.24/x
  3. Step 3: Cross multiply
    10,310.04x = 15,469.92 × 5,115.24
  4. Step 4: Simplify right side
    10,310.04x = 79,132,353.58
  5. Step 5: Solve for x
    x = 79,132,353.58/10,310.04
  6. Step 6: Final answer
    x = 7,675.27

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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.