Home / 18,079.07-27,115.56-5,428.62

Finding the Fourth Proportional to 18,079.07, 27,115.56 and 5,428.62

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Solution

The fourth proportional to 18,079.07, 27,115.56 and 5,428.62 is: 8,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.07 : 27,115.56 = 5,428.62 : x
  2. Step 2: Convert to fraction form
    18,079.07/27,115.56 = 5,428.62/x
  3. Step 3: Cross multiply
    18,079.07x = 27,115.56 × 5,428.62
  4. Step 4: Simplify right side
    18,079.07x = 147,200,071.33
  5. Step 5: Solve for x
    x = 147,200,071.33/18,079.07
  6. Step 6: Final answer
    x = 8,142.02

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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.