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Finding the Fourth Proportional to 18,396, 27,599.44 and 10,610.40

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Solution

The fourth proportional to 18,396, 27,599.44 and 10,610.40 is: 15,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396 : 27,599.44 = 10,610.40 : x
  2. Step 2: Convert to fraction form
    18,396/27,599.44 = 10,610.40/x
  3. Step 3: Cross multiply
    18,396x = 27,599.44 × 10,610.40
  4. Step 4: Simplify right side
    18,396x = 292,841,098.18
  5. Step 5: Solve for x
    x = 292,841,098.18/18,396
  6. Step 6: Final answer
    x = 15,918.74

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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.