Home / 8,112.80-11,195.66-4,386.80

Finding the Fourth Proportional to 8,112.80, 11,195.66 and 4,386.80

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Solution

The fourth proportional to 8,112.80, 11,195.66 and 4,386.80 is: 6,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.80 : 11,195.66 = 4,386.80 : x
  2. Step 2: Convert to fraction form
    8,112.80/11,195.66 = 4,386.80/x
  3. Step 3: Cross multiply
    8,112.80x = 11,195.66 × 4,386.80
  4. Step 4: Simplify right side
    8,112.80x = 49,113,084.93
  5. Step 5: Solve for x
    x = 49,113,084.93/8,112.80
  6. Step 6: Final answer
    x = 6,053.78

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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.