Home / 11,772.18-17,658.27-3,986.46

Finding the Fourth Proportional to 11,772.18, 17,658.27 and 3,986.46

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Solution

The fourth proportional to 11,772.18, 17,658.27 and 3,986.46 is: 5,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.18 : 17,658.27 = 3,986.46 : x
  2. Step 2: Convert to fraction form
    11,772.18/17,658.27 = 3,986.46/x
  3. Step 3: Cross multiply
    11,772.18x = 17,658.27 × 3,986.46
  4. Step 4: Simplify right side
    11,772.18x = 70,393,987.02
  5. Step 5: Solve for x
    x = 70,393,987.02/11,772.18
  6. Step 6: Final answer
    x = 5,979.69

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Similar ratio
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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.