Home / 8,449.11-11,660.79-4,912.32

Finding the Fourth Proportional to 8,449.11, 11,660.79 and 4,912.32

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Solution

The fourth proportional to 8,449.11, 11,660.79 and 4,912.32 is: 6,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.11 : 11,660.79 = 4,912.32 : x
  2. Step 2: Convert to fraction form
    8,449.11/11,660.79 = 4,912.32/x
  3. Step 3: Cross multiply
    8,449.11x = 11,660.79 × 4,912.32
  4. Step 4: Simplify right side
    8,449.11x = 57,281,531.93
  5. Step 5: Solve for x
    x = 57,281,531.93/8,449.11
  6. Step 6: Final answer
    x = 6,779.59

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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.