Home / 8,118.36-12,177.56-2,275.04

Finding the Fourth Proportional to 8,118.36, 12,177.56 and 2,275.04

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Solution

The fourth proportional to 8,118.36, 12,177.56 and 2,275.04 is: 3,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.36 : 12,177.56 = 2,275.04 : x
  2. Step 2: Convert to fraction form
    8,118.36/12,177.56 = 2,275.04/x
  3. Step 3: Cross multiply
    8,118.36x = 12,177.56 × 2,275.04
  4. Step 4: Simplify right side
    8,118.36x = 27,704,436.10
  5. Step 5: Solve for x
    x = 27,704,436.10/8,118.36
  6. Step 6: Final answer
    x = 3,412.57

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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.