Home / 8,366.40-11,540.16-5,220.48

Finding the Fourth Proportional to 8,366.40, 11,540.16 and 5,220.48

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Solution

The fourth proportional to 8,366.40, 11,540.16 and 5,220.48 is: 7,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366.40 : 11,540.16 = 5,220.48 : x
  2. Step 2: Convert to fraction form
    8,366.40/11,540.16 = 5,220.48/x
  3. Step 3: Cross multiply
    8,366.40x = 11,540.16 × 5,220.48
  4. Step 4: Simplify right side
    8,366.40x = 60,245,174.48
  5. Step 5: Solve for x
    x = 60,245,174.48/8,366.40
  6. Step 6: Final answer
    x = 7,200.85

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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.