Home / 7,982.90-11,968.38-5,510.66

Finding the Fourth Proportional to 7,982.90, 11,968.38 and 5,510.66

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Solution

The fourth proportional to 7,982.90, 11,968.38 and 5,510.66 is: 8,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.90 : 11,968.38 = 5,510.66 : x
  2. Step 2: Convert to fraction form
    7,982.90/11,968.38 = 5,510.66/x
  3. Step 3: Cross multiply
    7,982.90x = 11,968.38 × 5,510.66
  4. Step 4: Simplify right side
    7,982.90x = 65,953,672.93
  5. Step 5: Solve for x
    x = 65,953,672.93/7,982.90
  6. Step 6: Final answer
    x = 8,261.87

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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.