Home / 8,101.80-11,177.22-5,112.36

Finding the Fourth Proportional to 8,101.80, 11,177.22 and 5,112.36

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Solution

The fourth proportional to 8,101.80, 11,177.22 and 5,112.36 is: 7,053.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.80 : 11,177.22 = 5,112.36 : x
  2. Step 2: Convert to fraction form
    8,101.80/11,177.22 = 5,112.36/x
  3. Step 3: Cross multiply
    8,101.80x = 11,177.22 × 5,112.36
  4. Step 4: Simplify right side
    8,101.80x = 57,141,972.44
  5. Step 5: Solve for x
    x = 57,141,972.44/8,101.80
  6. Step 6: Final answer
    x = 7,053.00

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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.