Home / 7,711.82-11,567.52-2,165.21

Finding the Fourth Proportional to 7,711.82, 11,567.52 and 2,165.21

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Solution

The fourth proportional to 7,711.82, 11,567.52 and 2,165.21 is: 3,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.82 : 11,567.52 = 2,165.21 : x
  2. Step 2: Convert to fraction form
    7,711.82/11,567.52 = 2,165.21/x
  3. Step 3: Cross multiply
    7,711.82x = 11,567.52 × 2,165.21
  4. Step 4: Simplify right side
    7,711.82x = 25,046,052.14
  5. Step 5: Solve for x
    x = 25,046,052.14/7,711.82
  6. Step 6: Final answer
    x = 3,247.75

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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.