Home / 18,239.76-25,164.96-11,158.80

Finding the Fourth Proportional to 18,239.76, 25,164.96 and 11,158.80

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Solution

The fourth proportional to 18,239.76, 25,164.96 and 11,158.80 is: 15,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.76 : 25,164.96 = 11,158.80 : x
  2. Step 2: Convert to fraction form
    18,239.76/25,164.96 = 11,158.80/x
  3. Step 3: Cross multiply
    18,239.76x = 25,164.96 × 11,158.80
  4. Step 4: Simplify right side
    18,239.76x = 280,810,755.65
  5. Step 5: Solve for x
    x = 280,810,755.65/18,239.76
  6. Step 6: Final answer
    x = 15,395.53

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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.