Home / 7,849.12-11,773.68-2,658.64

Finding the Fourth Proportional to 7,849.12, 11,773.68 and 2,658.64

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Solution

The fourth proportional to 7,849.12, 11,773.68 and 2,658.64 is: 3,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.12 : 11,773.68 = 2,658.64 : x
  2. Step 2: Convert to fraction form
    7,849.12/11,773.68 = 2,658.64/x
  3. Step 3: Cross multiply
    7,849.12x = 11,773.68 × 2,658.64
  4. Step 4: Simplify right side
    7,849.12x = 31,301,976.60
  5. Step 5: Solve for x
    x = 31,301,976.60/7,849.12
  6. Step 6: Final answer
    x = 3,987.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.