Home / 18,983.52-28,482.66-7,887.42

Finding the Fourth Proportional to 18,983.52, 28,482.66 and 7,887.42

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Solution

The fourth proportional to 18,983.52, 28,482.66 and 7,887.42 is: 11,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.52 : 28,482.66 = 7,887.42 : x
  2. Step 2: Convert to fraction form
    18,983.52/28,482.66 = 7,887.42/x
  3. Step 3: Cross multiply
    18,983.52x = 28,482.66 × 7,887.42
  4. Step 4: Simplify right side
    18,983.52x = 224,654,702.14
  5. Step 5: Solve for x
    x = 224,654,702.14/18,983.52
  6. Step 6: Final answer
    x = 11,834.20

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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.