Home / 18,867.26-28,306.92-5,719.70

Finding the Fourth Proportional to 18,867.26, 28,306.92 and 5,719.70

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Solution

The fourth proportional to 18,867.26, 28,306.92 and 5,719.70 is: 8,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.26 : 28,306.92 = 5,719.70 : x
  2. Step 2: Convert to fraction form
    18,867.26/28,306.92 = 5,719.70/x
  3. Step 3: Cross multiply
    18,867.26x = 28,306.92 × 5,719.70
  4. Step 4: Simplify right side
    18,867.26x = 161,907,090.32
  5. Step 5: Solve for x
    x = 161,907,090.32/18,867.26
  6. Step 6: Final answer
    x = 8,581.38

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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.