Home / 7,922.79-11,888.28-4,027.20

Finding the Fourth Proportional to 7,922.79, 11,888.28 and 4,027.20

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Solution

The fourth proportional to 7,922.79, 11,888.28 and 4,027.20 is: 6,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.79 : 11,888.28 = 4,027.20 : x
  2. Step 2: Convert to fraction form
    7,922.79/11,888.28 = 4,027.20/x
  3. Step 3: Cross multiply
    7,922.79x = 11,888.28 × 4,027.20
  4. Step 4: Simplify right side
    7,922.79x = 47,876,481.22
  5. Step 5: Solve for x
    x = 47,876,481.22/7,922.79
  6. Step 6: Final answer
    x = 6,042.88

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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.