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Finding the Fourth Proportional to 8,793.36, 12,150.14 and 8,478.14

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Solution

The fourth proportional to 8,793.36, 12,150.14 and 8,478.14 is: 11,714.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.36 : 12,150.14 = 8,478.14 : x
  2. Step 2: Convert to fraction form
    8,793.36/12,150.14 = 8,478.14/x
  3. Step 3: Cross multiply
    8,793.36x = 12,150.14 × 8,478.14
  4. Step 4: Simplify right side
    8,793.36x = 103,010,484.80
  5. Step 5: Solve for x
    x = 103,010,484.80/8,793.36
  6. Step 6: Final answer
    x = 11,714.58

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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.