Home / 15,034.38-20,747.70-8,319.84

Finding the Fourth Proportional to 15,034.38, 20,747.70 and 8,319.84

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Solution

The fourth proportional to 15,034.38, 20,747.70 and 8,319.84 is: 11,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,034.38 : 20,747.70 = 8,319.84 : x
  2. Step 2: Convert to fraction form
    15,034.38/20,747.70 = 8,319.84/x
  3. Step 3: Cross multiply
    15,034.38x = 20,747.70 × 8,319.84
  4. Step 4: Simplify right side
    15,034.38x = 172,617,544.37
  5. Step 5: Solve for x
    x = 172,617,544.37/15,034.38
  6. Step 6: Final answer
    x = 11,481.52

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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.