Home / 8,104.64-12,131.30-5,324.72

Finding the Fourth Proportional to 8,104.64, 12,131.30 and 5,324.72

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Solution

The fourth proportional to 8,104.64, 12,131.30 and 5,324.72 is: 7,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.64 : 12,131.30 = 5,324.72 : x
  2. Step 2: Convert to fraction form
    8,104.64/12,131.30 = 5,324.72/x
  3. Step 3: Cross multiply
    8,104.64x = 12,131.30 × 5,324.72
  4. Step 4: Simplify right side
    8,104.64x = 64,595,728.39
  5. Step 5: Solve for x
    x = 64,595,728.39/8,104.64
  6. Step 6: Final answer
    x = 7,970.22

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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.