Home / 8,642.25-12,966.44-4,262.81

Finding the Fourth Proportional to 8,642.25, 12,966.44 and 4,262.81

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Solution

The fourth proportional to 8,642.25, 12,966.44 and 4,262.81 is: 6,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.25 : 12,966.44 = 4,262.81 : x
  2. Step 2: Convert to fraction form
    8,642.25/12,966.44 = 4,262.81/x
  3. Step 3: Cross multiply
    8,642.25x = 12,966.44 × 4,262.81
  4. Step 4: Simplify right side
    8,642.25x = 55,273,470.10
  5. Step 5: Solve for x
    x = 55,273,470.10/8,642.25
  6. Step 6: Final answer
    x = 6,395.73

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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.