Home / 8,921.66-13,382.71-2,998.64

Finding the Fourth Proportional to 8,921.66, 13,382.71 and 2,998.64

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Solution

The fourth proportional to 8,921.66, 13,382.71 and 2,998.64 is: 4,498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.66 : 13,382.71 = 2,998.64 : x
  2. Step 2: Convert to fraction form
    8,921.66/13,382.71 = 2,998.64/x
  3. Step 3: Cross multiply
    8,921.66x = 13,382.71 × 2,998.64
  4. Step 4: Simplify right side
    8,921.66x = 40,129,855.10
  5. Step 5: Solve for x
    x = 40,129,855.10/8,921.66
  6. Step 6: Final answer
    x = 4,498.02

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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.