Home / 11,213.28-15,475.44-8,413.92

Finding the Fourth Proportional to 11,213.28, 15,475.44 and 8,413.92

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Solution

The fourth proportional to 11,213.28, 15,475.44 and 8,413.92 is: 11,612.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.28 : 15,475.44 = 8,413.92 : x
  2. Step 2: Convert to fraction form
    11,213.28/15,475.44 = 8,413.92/x
  3. Step 3: Cross multiply
    11,213.28x = 15,475.44 × 8,413.92
  4. Step 4: Simplify right side
    11,213.28x = 130,209,114.12
  5. Step 5: Solve for x
    x = 130,209,114.12/11,213.28
  6. Step 6: Final answer
    x = 11,612.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.