Home / 13,387.68-20,067.12-5,981.94

Finding the Fourth Proportional to 13,387.68, 20,067.12 and 5,981.94

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Solution

The fourth proportional to 13,387.68, 20,067.12 and 5,981.94 is: 8,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.68 : 20,067.12 = 5,981.94 : x
  2. Step 2: Convert to fraction form
    13,387.68/20,067.12 = 5,981.94/x
  3. Step 3: Cross multiply
    13,387.68x = 20,067.12 × 5,981.94
  4. Step 4: Simplify right side
    13,387.68x = 120,040,307.81
  5. Step 5: Solve for x
    x = 120,040,307.81/13,387.68
  6. Step 6: Final answer
    x = 8,966.48

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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.