Home / 18,170.28-25,068.78-11,359.71

Finding the Fourth Proportional to 18,170.28, 25,068.78 and 11,359.71

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Solution

The fourth proportional to 18,170.28, 25,068.78 and 11,359.71 is: 15,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.28 : 25,068.78 = 11,359.71 : x
  2. Step 2: Convert to fraction form
    18,170.28/25,068.78 = 11,359.71/x
  3. Step 3: Cross multiply
    18,170.28x = 25,068.78 × 11,359.71
  4. Step 4: Simplify right side
    18,170.28x = 284,774,070.85
  5. Step 5: Solve for x
    x = 284,774,070.85/18,170.28
  6. Step 6: Final answer
    x = 15,672.52

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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.