Home / 8,721.60-13,067.52-5,758.08

Finding the Fourth Proportional to 8,721.60, 13,067.52 and 5,758.08

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Solution

The fourth proportional to 8,721.60, 13,067.52 and 5,758.08 is: 8,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.60 : 13,067.52 = 5,758.08 : x
  2. Step 2: Convert to fraction form
    8,721.60/13,067.52 = 5,758.08/x
  3. Step 3: Cross multiply
    8,721.60x = 13,067.52 × 5,758.08
  4. Step 4: Simplify right side
    8,721.60x = 75,243,825.56
  5. Step 5: Solve for x
    x = 75,243,825.56/8,721.60
  6. Step 6: Final answer
    x = 8,627.30

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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.