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Finding the Fourth Proportional to 18,274.80, 27,413.01 and 5,126.88

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Solution

The fourth proportional to 18,274.80, 27,413.01 and 5,126.88 is: 7,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.80 : 27,413.01 = 5,126.88 : x
  2. Step 2: Convert to fraction form
    18,274.80/27,413.01 = 5,126.88/x
  3. Step 3: Cross multiply
    18,274.80x = 27,413.01 × 5,126.88
  4. Step 4: Simplify right side
    18,274.80x = 140,543,212.71
  5. Step 5: Solve for x
    x = 140,543,212.71/18,274.80
  6. Step 6: Final answer
    x = 7,690.55

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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.