Home / 8,965.32-13,449.80-3,122.39

Finding the Fourth Proportional to 8,965.32, 13,449.80 and 3,122.39

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Solution

The fourth proportional to 8,965.32, 13,449.80 and 3,122.39 is: 4,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.32 : 13,449.80 = 3,122.39 : x
  2. Step 2: Convert to fraction form
    8,965.32/13,449.80 = 3,122.39/x
  3. Step 3: Cross multiply
    8,965.32x = 13,449.80 × 3,122.39
  4. Step 4: Simplify right side
    8,965.32x = 41,995,521.02
  5. Step 5: Solve for x
    x = 41,995,521.02/8,965.32
  6. Step 6: Final answer
    x = 4,684.22

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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.