Home / 8,786.50-12,133.44-5,648.14

Finding the Fourth Proportional to 8,786.50, 12,133.44 and 5,648.14

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Solution

The fourth proportional to 8,786.50, 12,133.44 and 5,648.14 is: 7,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.50 : 12,133.44 = 5,648.14 : x
  2. Step 2: Convert to fraction form
    8,786.50/12,133.44 = 5,648.14/x
  3. Step 3: Cross multiply
    8,786.50x = 12,133.44 × 5,648.14
  4. Step 4: Simplify right side
    8,786.50x = 68,531,367.80
  5. Step 5: Solve for x
    x = 68,531,367.80/8,786.50
  6. Step 6: Final answer
    x = 7,799.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.