Home / 16,864.38-25,310.34-11,938.80

Finding the Fourth Proportional to 16,864.38, 25,310.34 and 11,938.80

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Solution

The fourth proportional to 16,864.38, 25,310.34 and 11,938.80 is: 17,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,864.38 : 25,310.34 = 11,938.80 : x
  2. Step 2: Convert to fraction form
    16,864.38/25,310.34 = 11,938.80/x
  3. Step 3: Cross multiply
    16,864.38x = 25,310.34 × 11,938.80
  4. Step 4: Simplify right side
    16,864.38x = 302,175,087.19
  5. Step 5: Solve for x
    x = 302,175,087.19/16,864.38
  6. Step 6: Final answer
    x = 17,917.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.