Home / 18,279.55-25,229.77-11,574.11

Finding the Fourth Proportional to 18,279.55, 25,229.77 and 11,574.11

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Solution

The fourth proportional to 18,279.55, 25,229.77 and 11,574.11 is: 15,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.55 : 25,229.77 = 11,574.11 : x
  2. Step 2: Convert to fraction form
    18,279.55/25,229.77 = 11,574.11/x
  3. Step 3: Cross multiply
    18,279.55x = 25,229.77 × 11,574.11
  4. Step 4: Simplify right side
    18,279.55x = 292,012,167.39
  5. Step 5: Solve for x
    x = 292,012,167.39/18,279.55
  6. Step 6: Final answer
    x = 15,974.80

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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.