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Finding the Fourth Proportional to 18,560.60, 27,842.70 and 5,413.10

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Solution

The fourth proportional to 18,560.60, 27,842.70 and 5,413.10 is: 8,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.60 : 27,842.70 = 5,413.10 : x
  2. Step 2: Convert to fraction form
    18,560.60/27,842.70 = 5,413.10/x
  3. Step 3: Cross multiply
    18,560.60x = 27,842.70 × 5,413.10
  4. Step 4: Simplify right side
    18,560.60x = 150,715,319.37
  5. Step 5: Solve for x
    x = 150,715,319.37/18,560.60
  6. Step 6: Final answer
    x = 8,120.17

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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.