Home / 12,872.96-19,304.48-5,480.92

Finding the Fourth Proportional to 12,872.96, 19,304.48 and 5,480.92

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Solution

The fourth proportional to 12,872.96, 19,304.48 and 5,480.92 is: 8,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872.96 : 19,304.48 = 5,480.92 : x
  2. Step 2: Convert to fraction form
    12,872.96/19,304.48 = 5,480.92/x
  3. Step 3: Cross multiply
    12,872.96x = 19,304.48 × 5,480.92
  4. Step 4: Simplify right side
    12,872.96x = 105,806,310.52
  5. Step 5: Solve for x
    x = 105,806,310.52/12,872.96
  6. Step 6: Final answer
    x = 8,219.27

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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.