Home / 10,342.55-15,513.83-5,413.70

Finding the Fourth Proportional to 10,342.55, 15,513.83 and 5,413.70

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Solution

The fourth proportional to 10,342.55, 15,513.83 and 5,413.70 is: 8,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.55 : 15,513.83 = 5,413.70 : x
  2. Step 2: Convert to fraction form
    10,342.55/15,513.83 = 5,413.70/x
  3. Step 3: Cross multiply
    10,342.55x = 15,513.83 × 5,413.70
  4. Step 4: Simplify right side
    10,342.55x = 83,987,221.47
  5. Step 5: Solve for x
    x = 83,987,221.47/10,342.55
  6. Step 6: Final answer
    x = 8,120.55

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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.