Home / 12,873.96-19,306.08-5,481.90

Finding the Fourth Proportional to 12,873.96, 19,306.08 and 5,481.90

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Solution

The fourth proportional to 12,873.96, 19,306.08 and 5,481.90 is: 8,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.96 : 19,306.08 = 5,481.90 : x
  2. Step 2: Convert to fraction form
    12,873.96/19,306.08 = 5,481.90/x
  3. Step 3: Cross multiply
    12,873.96x = 19,306.08 × 5,481.90
  4. Step 4: Simplify right side
    12,873.96x = 105,833,999.95
  5. Step 5: Solve for x
    x = 105,833,999.95/12,873.96
  6. Step 6: Final answer
    x = 8,220.78

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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.