Home / 11,781.50-17,661.06-4,380.92

Finding the Fourth Proportional to 11,781.50, 17,661.06 and 4,380.92

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Solution

The fourth proportional to 11,781.50, 17,661.06 and 4,380.92 is: 6,567.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.50 : 17,661.06 = 4,380.92 : x
  2. Step 2: Convert to fraction form
    11,781.50/17,661.06 = 4,380.92/x
  3. Step 3: Cross multiply
    11,781.50x = 17,661.06 × 4,380.92
  4. Step 4: Simplify right side
    11,781.50x = 77,371,690.98
  5. Step 5: Solve for x
    x = 77,371,690.98/11,781.50
  6. Step 6: Final answer
    x = 6,567.22

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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.