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Finding the Fourth Proportional to 8,180.80, 11,053.80 and 8,180.80

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Solution

The fourth proportional to 8,180.80, 11,053.80 and 8,180.80 is: 11,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.80 : 11,053.80 = 8,180.80 : x
  2. Step 2: Convert to fraction form
    8,180.80/11,053.80 = 8,180.80/x
  3. Step 3: Cross multiply
    8,180.80x = 11,053.80 × 8,180.80
  4. Step 4: Simplify right side
    8,180.80x = 90,428,927.04
  5. Step 5: Solve for x
    x = 90,428,927.04/8,180.80
  6. Step 6: Final answer
    x = 11,053.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.