Home / 15,074.30-20,778.56-11,882.42

Finding the Fourth Proportional to 15,074.30, 20,778.56 and 11,882.42

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Solution

The fourth proportional to 15,074.30, 20,778.56 and 11,882.42 is: 16,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.30 : 20,778.56 = 11,882.42 : x
  2. Step 2: Convert to fraction form
    15,074.30/20,778.56 = 11,882.42/x
  3. Step 3: Cross multiply
    15,074.30x = 20,778.56 × 11,882.42
  4. Step 4: Simplify right side
    15,074.30x = 246,899,473.02
  5. Step 5: Solve for x
    x = 246,899,473.02/15,074.30
  6. Step 6: Final answer
    x = 16,378.84

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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.