Home / 18,644.20-25,732.68-10,691.80

Finding the Fourth Proportional to 18,644.20, 25,732.68 and 10,691.80

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Solution

The fourth proportional to 18,644.20, 25,732.68 and 10,691.80 is: 14,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.20 : 25,732.68 = 10,691.80 : x
  2. Step 2: Convert to fraction form
    18,644.20/25,732.68 = 10,691.80/x
  3. Step 3: Cross multiply
    18,644.20x = 25,732.68 × 10,691.80
  4. Step 4: Simplify right side
    18,644.20x = 275,128,668.02
  5. Step 5: Solve for x
    x = 275,128,668.02/18,644.20
  6. Step 6: Final answer
    x = 14,756.80

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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.