Home / 8,090.65-11,168.54-5,439.60

Finding the Fourth Proportional to 8,090.65, 11,168.54 and 5,439.60

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Solution

The fourth proportional to 8,090.65, 11,168.54 and 5,439.60 is: 7,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.65 : 11,168.54 = 5,439.60 : x
  2. Step 2: Convert to fraction form
    8,090.65/11,168.54 = 5,439.60/x
  3. Step 3: Cross multiply
    8,090.65x = 11,168.54 × 5,439.60
  4. Step 4: Simplify right side
    8,090.65x = 60,752,390.18
  5. Step 5: Solve for x
    x = 60,752,390.18/8,090.65
  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.