Home / 8,836.62-12,195.75-5,112.78

Finding the Fourth Proportional to 8,836.62, 12,195.75 and 5,112.78

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Solution

The fourth proportional to 8,836.62, 12,195.75 and 5,112.78 is: 7,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.62 : 12,195.75 = 5,112.78 : x
  2. Step 2: Convert to fraction form
    8,836.62/12,195.75 = 5,112.78/x
  3. Step 3: Cross multiply
    8,836.62x = 12,195.75 × 5,112.78
  4. Step 4: Simplify right side
    8,836.62x = 62,354,186.69
  5. Step 5: Solve for x
    x = 62,354,186.69/8,836.62
  6. Step 6: Final answer
    x = 7,056.34

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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.