Home / 7,986.10-11,021.02-4,449.38

Finding the Fourth Proportional to 7,986.10, 11,021.02 and 4,449.38

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Solution

The fourth proportional to 7,986.10, 11,021.02 and 4,449.38 is: 6,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.10 : 11,021.02 = 4,449.38 : x
  2. Step 2: Convert to fraction form
    7,986.10/11,021.02 = 4,449.38/x
  3. Step 3: Cross multiply
    7,986.10x = 11,021.02 × 4,449.38
  4. Step 4: Simplify right side
    7,986.10x = 49,036,705.97
  5. Step 5: Solve for x
    x = 49,036,705.97/7,986.10
  6. Step 6: Final answer
    x = 6,140.26

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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.