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Finding the Fourth Proportional to 8,055.80, 12,067.08 and 5,978.16

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Solution

The fourth proportional to 8,055.80, 12,067.08 and 5,978.16 is: 8,954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.80 : 12,067.08 = 5,978.16 : x
  2. Step 2: Convert to fraction form
    8,055.80/12,067.08 = 5,978.16/x
  3. Step 3: Cross multiply
    8,055.80x = 12,067.08 × 5,978.16
  4. Step 4: Simplify right side
    8,055.80x = 72,138,934.97
  5. Step 5: Solve for x
    x = 72,138,934.97/8,055.80
  6. Step 6: Final answer
    x = 8,954.91

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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.