Home / 7,986.32-11,020.80-4,449.92

Finding the Fourth Proportional to 7,986.32, 11,020.80 and 4,449.92

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Solution

The fourth proportional to 7,986.32, 11,020.80 and 4,449.92 is: 6,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.32 : 11,020.80 = 4,449.92 : x
  2. Step 2: Convert to fraction form
    7,986.32/11,020.80 = 4,449.92/x
  3. Step 3: Cross multiply
    7,986.32x = 11,020.80 × 4,449.92
  4. Step 4: Simplify right side
    7,986.32x = 49,041,678.34
  5. Step 5: Solve for x
    x = 49,041,678.34/7,986.32
  6. Step 6: Final answer
    x = 6,140.71

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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.