Home / 7,986.24-11,020.96-4,449.40

Finding the Fourth Proportional to 7,986.24, 11,020.96 and 4,449.40

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Solution

The fourth proportional to 7,986.24, 11,020.96 and 4,449.40 is: 6,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.24 : 11,020.96 = 4,449.40 : x
  2. Step 2: Convert to fraction form
    7,986.24/11,020.96 = 4,449.40/x
  3. Step 3: Cross multiply
    7,986.24x = 11,020.96 × 4,449.40
  4. Step 4: Simplify right side
    7,986.24x = 49,036,659.42
  5. Step 5: Solve for x
    x = 49,036,659.42/7,986.24
  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.