Home / 15,134.11-20,885.24-8,328.22

Finding the Fourth Proportional to 15,134.11, 20,885.24 and 8,328.22

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Solution

The fourth proportional to 15,134.11, 20,885.24 and 8,328.22 is: 11,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.11 : 20,885.24 = 8,328.22 : x
  2. Step 2: Convert to fraction form
    15,134.11/20,885.24 = 8,328.22/x
  3. Step 3: Cross multiply
    15,134.11x = 20,885.24 × 8,328.22
  4. Step 4: Simplify right side
    15,134.11x = 173,936,873.47
  5. Step 5: Solve for x
    x = 173,936,873.47/15,134.11
  6. Step 6: Final answer
    x = 11,493.04

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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.