Home / 8,118.54-11,192.43-5,132.88

Finding the Fourth Proportional to 8,118.54, 11,192.43 and 5,132.88

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Solution

The fourth proportional to 8,118.54, 11,192.43 and 5,132.88 is: 7,076.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.54 : 11,192.43 = 5,132.88 : x
  2. Step 2: Convert to fraction form
    8,118.54/11,192.43 = 5,132.88/x
  3. Step 3: Cross multiply
    8,118.54x = 11,192.43 × 5,132.88
  4. Step 4: Simplify right side
    8,118.54x = 57,449,400.10
  5. Step 5: Solve for x
    x = 57,449,400.10/8,118.54
  6. Step 6: Final answer
    x = 7,076.32

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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.