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Finding the Fourth Proportional to 18,465.86, 27,686.19 and 10,577.27

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Solution

The fourth proportional to 18,465.86, 27,686.19 and 10,577.27 is: 15,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.86 : 27,686.19 = 10,577.27 : x
  2. Step 2: Convert to fraction form
    18,465.86/27,686.19 = 10,577.27/x
  3. Step 3: Cross multiply
    18,465.86x = 27,686.19 × 10,577.27
  4. Step 4: Simplify right side
    18,465.86x = 292,844,306.90
  5. Step 5: Solve for x
    x = 292,844,306.90/18,465.86
  6. Step 6: Final answer
    x = 15,858.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.