Home / 7,540.13-11,311.84-3,155.33

Finding the Fourth Proportional to 7,540.13, 11,311.84 and 3,155.33

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Solution

The fourth proportional to 7,540.13, 11,311.84 and 3,155.33 is: 4,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.13 : 11,311.84 = 3,155.33 : x
  2. Step 2: Convert to fraction form
    7,540.13/11,311.84 = 3,155.33/x
  3. Step 3: Cross multiply
    7,540.13x = 11,311.84 × 3,155.33
  4. Step 4: Simplify right side
    7,540.13x = 35,692,572.33
  5. Step 5: Solve for x
    x = 35,692,572.33/7,540.13
  6. Step 6: Final answer
    x = 4,733.68

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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.