Home / 18,837.12-28,270.24-10,079.36

Finding the Fourth Proportional to 18,837.12, 28,270.24 and 10,079.36

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Solution

The fourth proportional to 18,837.12, 28,270.24 and 10,079.36 is: 15,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.12 : 28,270.24 = 10,079.36 : x
  2. Step 2: Convert to fraction form
    18,837.12/28,270.24 = 10,079.36/x
  3. Step 3: Cross multiply
    18,837.12x = 28,270.24 × 10,079.36
  4. Step 4: Simplify right side
    18,837.12x = 284,945,926.25
  5. Step 5: Solve for x
    x = 284,945,926.25/18,837.12
  6. Step 6: Final answer
    x = 15,126.83

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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.