Home / 18,717.38-25,818.66-11,158.66

Finding the Fourth Proportional to 18,717.38, 25,818.66 and 11,158.66

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Solution

The fourth proportional to 18,717.38, 25,818.66 and 11,158.66 is: 15,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.38 : 25,818.66 = 11,158.66 : x
  2. Step 2: Convert to fraction form
    18,717.38/25,818.66 = 11,158.66/x
  3. Step 3: Cross multiply
    18,717.38x = 25,818.66 × 11,158.66
  4. Step 4: Simplify right side
    18,717.38x = 288,101,648.60
  5. Step 5: Solve for x
    x = 288,101,648.60/18,717.38
  6. Step 6: Final answer
    x = 15,392.20

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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.