Home / 8,104.80-12,130.20-5,877.30

Finding the Fourth Proportional to 8,104.80, 12,130.20 and 5,877.30

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Solution

The fourth proportional to 8,104.80, 12,130.20 and 5,877.30 is: 8,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.80 : 12,130.20 = 5,877.30 : x
  2. Step 2: Convert to fraction form
    8,104.80/12,130.20 = 5,877.30/x
  3. Step 3: Cross multiply
    8,104.80x = 12,130.20 × 5,877.30
  4. Step 4: Simplify right side
    8,104.80x = 71,292,824.46
  5. Step 5: Solve for x
    x = 71,292,824.46/8,104.80
  6. Step 6: Final answer
    x = 8,796.37

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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.