Home / 7,999.38-11,039.13-4,462.56

Finding the Fourth Proportional to 7,999.38, 11,039.13 and 4,462.56

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Solution

The fourth proportional to 7,999.38, 11,039.13 and 4,462.56 is: 6,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.38 : 11,039.13 = 4,462.56 : x
  2. Step 2: Convert to fraction form
    7,999.38/11,039.13 = 4,462.56/x
  3. Step 3: Cross multiply
    7,999.38x = 11,039.13 × 4,462.56
  4. Step 4: Simplify right side
    7,999.38x = 49,262,779.97
  5. Step 5: Solve for x
    x = 49,262,779.97/7,999.38
  6. Step 6: Final answer
    x = 6,158.32

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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.