Home / 10,413.82-15,618.30-4,861.90

Finding the Fourth Proportional to 10,413.82, 15,618.30 and 4,861.90

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Solution

The fourth proportional to 10,413.82, 15,618.30 and 4,861.90 is: 7,291.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,413.82 : 15,618.30 = 4,861.90 : x
  2. Step 2: Convert to fraction form
    10,413.82/15,618.30 = 4,861.90/x
  3. Step 3: Cross multiply
    10,413.82x = 15,618.30 × 4,861.90
  4. Step 4: Simplify right side
    10,413.82x = 75,934,612.77
  5. Step 5: Solve for x
    x = 75,934,612.77/10,413.82
  6. Step 6: Final answer
    x = 7,291.72

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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.