Home / 8,053.26-12,077.55-3,121.80

Finding the Fourth Proportional to 8,053.26, 12,077.55 and 3,121.80

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Solution

The fourth proportional to 8,053.26, 12,077.55 and 3,121.80 is: 4,681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,053.26 : 12,077.55 = 3,121.80 : x
  2. Step 2: Convert to fraction form
    8,053.26/12,077.55 = 3,121.80/x
  3. Step 3: Cross multiply
    8,053.26x = 12,077.55 × 3,121.80
  4. Step 4: Simplify right side
    8,053.26x = 37,703,695.59
  5. Step 5: Solve for x
    x = 37,703,695.59/8,053.26
  6. Step 6: Final answer
    x = 4,681.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.