Home / 13,255.80-19,877.22-7,711.08

Finding the Fourth Proportional to 13,255.80, 19,877.22 and 7,711.08

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Solution

The fourth proportional to 13,255.80, 19,877.22 and 7,711.08 is: 11,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.80 : 19,877.22 = 7,711.08 : x
  2. Step 2: Convert to fraction form
    13,255.80/19,877.22 = 7,711.08/x
  3. Step 3: Cross multiply
    13,255.80x = 19,877.22 × 7,711.08
  4. Step 4: Simplify right side
    13,255.80x = 153,274,833.60
  5. Step 5: Solve for x
    x = 153,274,833.60/13,255.80
  6. Step 6: Final answer
    x = 11,562.85

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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.