Home / 10,125.72-15,189.04-3,105.22

Finding the Fourth Proportional to 10,125.72, 15,189.04 and 3,105.22

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Solution

The fourth proportional to 10,125.72, 15,189.04 and 3,105.22 is: 4,657.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.72 : 15,189.04 = 3,105.22 : x
  2. Step 2: Convert to fraction form
    10,125.72/15,189.04 = 3,105.22/x
  3. Step 3: Cross multiply
    10,125.72x = 15,189.04 × 3,105.22
  4. Step 4: Simplify right side
    10,125.72x = 47,165,310.79
  5. Step 5: Solve for x
    x = 47,165,310.79/10,125.72
  6. Step 6: Final answer
    x = 4,657.97

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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.