Home / 18,487.17-27,725.28-5,339.66

Finding the Fourth Proportional to 18,487.17, 27,725.28 and 5,339.66

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Solution

The fourth proportional to 18,487.17, 27,725.28 and 5,339.66 is: 8,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.17 : 27,725.28 = 5,339.66 : x
  2. Step 2: Convert to fraction form
    18,487.17/27,725.28 = 5,339.66/x
  3. Step 3: Cross multiply
    18,487.17x = 27,725.28 × 5,339.66
  4. Step 4: Simplify right side
    18,487.17x = 148,043,429.98
  5. Step 5: Solve for x
    x = 148,043,429.98/18,487.17
  6. Step 6: Final answer
    x = 8,007.90

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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.