Home / 8,479.35-12,721.05-3,546.25

Finding the Fourth Proportional to 8,479.35, 12,721.05 and 3,546.25

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Solution

The fourth proportional to 8,479.35, 12,721.05 and 3,546.25 is: 5,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.35 : 12,721.05 = 3,546.25 : x
  2. Step 2: Convert to fraction form
    8,479.35/12,721.05 = 3,546.25/x
  3. Step 3: Cross multiply
    8,479.35x = 12,721.05 × 3,546.25
  4. Step 4: Simplify right side
    8,479.35x = 45,111,991.76
  5. Step 5: Solve for x
    x = 45,111,991.76/8,479.35
  6. Step 6: Final answer
    x = 5,320.22

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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.