Home / 8,627.11-12,943.38-3,080.33

Finding the Fourth Proportional to 8,627.11, 12,943.38 and 3,080.33

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Solution

The fourth proportional to 8,627.11, 12,943.38 and 3,080.33 is: 4,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.11 : 12,943.38 = 3,080.33 : x
  2. Step 2: Convert to fraction form
    8,627.11/12,943.38 = 3,080.33/x
  3. Step 3: Cross multiply
    8,627.11x = 12,943.38 × 3,080.33
  4. Step 4: Simplify right side
    8,627.11x = 39,869,859.76
  5. Step 5: Solve for x
    x = 39,869,859.76/8,627.11
  6. Step 6: Final answer
    x = 4,621.46

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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.