Home / 13,177.11-19,739.75-8,731.83

Finding the Fourth Proportional to 13,177.11, 19,739.75 and 8,731.83

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Solution

The fourth proportional to 13,177.11, 19,739.75 and 8,731.83 is: 13,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.11 : 19,739.75 = 8,731.83 : x
  2. Step 2: Convert to fraction form
    13,177.11/19,739.75 = 8,731.83/x
  3. Step 3: Cross multiply
    13,177.11x = 19,739.75 × 8,731.83
  4. Step 4: Simplify right side
    13,177.11x = 172,364,097.58
  5. Step 5: Solve for x
    x = 172,364,097.58/13,177.11
  6. Step 6: Final answer
    x = 13,080.57

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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.