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Finding the Fourth Proportional to 18,153.82, 27,234.50 and 9,152.97

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Solution

The fourth proportional to 18,153.82, 27,234.50 and 9,152.97 is: 13,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.82 : 27,234.50 = 9,152.97 : x
  2. Step 2: Convert to fraction form
    18,153.82/27,234.50 = 9,152.97/x
  3. Step 3: Cross multiply
    18,153.82x = 27,234.50 × 9,152.97
  4. Step 4: Simplify right side
    18,153.82x = 249,276,413.57
  5. Step 5: Solve for x
    x = 249,276,413.57/18,153.82
  6. Step 6: Final answer
    x = 13,731.35

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1.5x scale

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.