Home / 15,034.26-20,747.32-8,320.18

Finding the Fourth Proportional to 15,034.26, 20,747.32 and 8,320.18

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Solution

The fourth proportional to 15,034.26, 20,747.32 and 8,320.18 is: 11,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,034.26 : 20,747.32 = 8,320.18 : x
  2. Step 2: Convert to fraction form
    15,034.26/20,747.32 = 8,320.18/x
  3. Step 3: Cross multiply
    15,034.26x = 20,747.32 × 8,320.18
  4. Step 4: Simplify right side
    15,034.26x = 172,621,436.92
  5. Step 5: Solve for x
    x = 172,621,436.92/15,034.26
  6. Step 6: Final answer
    x = 11,481.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.