Home / 8,266.47-12,395.57-2,643.41

Finding the Fourth Proportional to 8,266.47, 12,395.57 and 2,643.41

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Solution

The fourth proportional to 8,266.47, 12,395.57 and 2,643.41 is: 3,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.47 : 12,395.57 = 2,643.41 : x
  2. Step 2: Convert to fraction form
    8,266.47/12,395.57 = 2,643.41/x
  3. Step 3: Cross multiply
    8,266.47x = 12,395.57 × 2,643.41
  4. Step 4: Simplify right side
    8,266.47x = 32,766,505.11
  5. Step 5: Solve for x
    x = 32,766,505.11/8,266.47
  6. Step 6: Final answer
    x = 3,963.79

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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.