Home / 18,723.52-25,835.97-11,170.72

Finding the Fourth Proportional to 18,723.52, 25,835.97 and 11,170.72

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Solution

The fourth proportional to 18,723.52, 25,835.97 and 11,170.72 is: 15,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.52 : 25,835.97 = 11,170.72 : x
  2. Step 2: Convert to fraction form
    18,723.52/25,835.97 = 11,170.72/x
  3. Step 3: Cross multiply
    18,723.52x = 25,835.97 × 11,170.72
  4. Step 4: Simplify right side
    18,723.52x = 288,606,386.80
  5. Step 5: Solve for x
    x = 288,606,386.80/18,723.52
  6. Step 6: Final answer
    x = 15,414.11

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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.