Home / 7,986.18-11,020.82-4,449.42

Finding the Fourth Proportional to 7,986.18, 11,020.82 and 4,449.42

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Solution

The fourth proportional to 7,986.18, 11,020.82 and 4,449.42 is: 6,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.18 : 11,020.82 = 4,449.42 : x
  2. Step 2: Convert to fraction form
    7,986.18/11,020.82 = 4,449.42/x
  3. Step 3: Cross multiply
    7,986.18x = 11,020.82 × 4,449.42
  4. Step 4: Simplify right side
    7,986.18x = 49,036,256.92
  5. Step 5: Solve for x
    x = 49,036,256.92/7,986.18
  6. Step 6: Final answer
    x = 6,140.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.