Home / 8,090.66-11,168.55-5,439.60

Finding the Fourth Proportional to 8,090.66, 11,168.55 and 5,439.60

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Solution

The fourth proportional to 8,090.66, 11,168.55 and 5,439.60 is: 7,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.66 : 11,168.55 = 5,439.60 : x
  2. Step 2: Convert to fraction form
    8,090.66/11,168.55 = 5,439.60/x
  3. Step 3: Cross multiply
    8,090.66x = 11,168.55 × 5,439.60
  4. Step 4: Simplify right side
    8,090.66x = 60,752,417.38
  5. Step 5: Solve for x
    x = 60,752,417.38/8,090.66
  6. Step 6: Final answer
    x = 7,508.96

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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.