Home / 8,081.02-11,155.53-5,396.68

Finding the Fourth Proportional to 8,081.02, 11,155.53 and 5,396.68

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Solution

The fourth proportional to 8,081.02, 11,155.53 and 5,396.68 is: 7,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.02 : 11,155.53 = 5,396.68 : x
  2. Step 2: Convert to fraction form
    8,081.02/11,155.53 = 5,396.68/x
  3. Step 3: Cross multiply
    8,081.02x = 11,155.53 × 5,396.68
  4. Step 4: Simplify right side
    8,081.02x = 60,202,825.64
  5. Step 5: Solve for x
    x = 60,202,825.64/8,081.02
  6. Step 6: Final answer
    x = 7,449.90

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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.