Home / 13,373.05-18,451.95-8,067.79

Finding the Fourth Proportional to 13,373.05, 18,451.95 and 8,067.79

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Solution

The fourth proportional to 13,373.05, 18,451.95 and 8,067.79 is: 11,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.05 : 18,451.95 = 8,067.79 : x
  2. Step 2: Convert to fraction form
    13,373.05/18,451.95 = 8,067.79/x
  3. Step 3: Cross multiply
    13,373.05x = 18,451.95 × 8,067.79
  4. Step 4: Simplify right side
    13,373.05x = 148,866,457.69
  5. Step 5: Solve for x
    x = 148,866,457.69/13,373.05
  6. Step 6: Final answer
    x = 11,131.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.