Home / 8,275.36-12,419.22-5,160.04

Finding the Fourth Proportional to 8,275.36, 12,419.22 and 5,160.04

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Solution

The fourth proportional to 8,275.36, 12,419.22 and 5,160.04 is: 7,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.36 : 12,419.22 = 5,160.04 : x
  2. Step 2: Convert to fraction form
    8,275.36/12,419.22 = 5,160.04/x
  3. Step 3: Cross multiply
    8,275.36x = 12,419.22 × 5,160.04
  4. Step 4: Simplify right side
    8,275.36x = 64,083,671.97
  5. Step 5: Solve for x
    x = 64,083,671.97/8,275.36
  6. Step 6: Final answer
    x = 7,743.91

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1.5x scale

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.