Home / 18,366-25,345.17-9,982.50

Finding the Fourth Proportional to 18,366, 25,345.17 and 9,982.50

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Solution

The fourth proportional to 18,366, 25,345.17 and 9,982.50 is: 13,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366 : 25,345.17 = 9,982.50 : x
  2. Step 2: Convert to fraction form
    18,366/25,345.17 = 9,982.50/x
  3. Step 3: Cross multiply
    18,366x = 25,345.17 × 9,982.50
  4. Step 4: Simplify right side
    18,366x = 253,008,159.53
  5. Step 5: Solve for x
    x = 253,008,159.53/18,366
  6. Step 6: Final answer
    x = 13,775.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.