Home / 10,539.18-15,811.05-5,608.11

Finding the Fourth Proportional to 10,539.18, 15,811.05 and 5,608.11

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Solution

The fourth proportional to 10,539.18, 15,811.05 and 5,608.11 is: 8,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.18 : 15,811.05 = 5,608.11 : x
  2. Step 2: Convert to fraction form
    10,539.18/15,811.05 = 5,608.11/x
  3. Step 3: Cross multiply
    10,539.18x = 15,811.05 × 5,608.11
  4. Step 4: Simplify right side
    10,539.18x = 88,670,107.62
  5. Step 5: Solve for x
    x = 88,670,107.62/10,539.18
  6. Step 6: Final answer
    x = 8,413.38

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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.