Home / 8,921.52-13,382.28-3,721.68

Finding the Fourth Proportional to 8,921.52, 13,382.28 and 3,721.68

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Solution

The fourth proportional to 8,921.52, 13,382.28 and 3,721.68 is: 5,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.52 : 13,382.28 = 3,721.68 : x
  2. Step 2: Convert to fraction form
    8,921.52/13,382.28 = 3,721.68/x
  3. Step 3: Cross multiply
    8,921.52x = 13,382.28 × 3,721.68
  4. Step 4: Simplify right side
    8,921.52x = 49,804,563.83
  5. Step 5: Solve for x
    x = 49,804,563.83/8,921.52
  6. Step 6: Final answer
    x = 5,582.52

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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.