Home / 15,034.28-20,747.14-8,320.19

Finding the Fourth Proportional to 15,034.28, 20,747.14 and 8,320.19

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Solution

The fourth proportional to 15,034.28, 20,747.14 and 8,320.19 is: 11,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,034.28 : 20,747.14 = 8,320.19 : x
  2. Step 2: Convert to fraction form
    15,034.28/20,747.14 = 8,320.19/x
  3. Step 3: Cross multiply
    15,034.28x = 20,747.14 × 8,320.19
  4. Step 4: Simplify right side
    15,034.28x = 172,620,022.22
  5. Step 5: Solve for x
    x = 172,620,022.22/15,034.28
  6. Step 6: Final answer
    x = 11,481.77

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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.