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Finding the Fourth Proportional to 9,070.78, 12,514.46 and 5,928.78

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Solution

The fourth proportional to 9,070.78, 12,514.46 and 5,928.78 is: 8,179.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,070.78 : 12,514.46 = 5,928.78 : x
  2. Step 2: Convert to fraction form
    9,070.78/12,514.46 = 5,928.78/x
  3. Step 3: Cross multiply
    9,070.78x = 12,514.46 × 5,928.78
  4. Step 4: Simplify right side
    9,070.78x = 74,195,480.16
  5. Step 5: Solve for x
    x = 74,195,480.16/9,070.78
  6. Step 6: Final answer
    x = 8,179.61

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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.