Home / 18,867.74-28,299.17-6,387.26

Finding the Fourth Proportional to 18,867.74, 28,299.17 and 6,387.26

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Solution

The fourth proportional to 18,867.74, 28,299.17 and 6,387.26 is: 9,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.74 : 28,299.17 = 6,387.26 : x
  2. Step 2: Convert to fraction form
    18,867.74/28,299.17 = 6,387.26/x
  3. Step 3: Cross multiply
    18,867.74x = 28,299.17 × 6,387.26
  4. Step 4: Simplify right side
    18,867.74x = 180,754,031.05
  5. Step 5: Solve for x
    x = 180,754,031.05/18,867.74
  6. Step 6: Final answer
    x = 9,580.06

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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.