Home / 8,006.40-12,008.07-2,161.53

Finding the Fourth Proportional to 8,006.40, 12,008.07 and 2,161.53

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Solution

The fourth proportional to 8,006.40, 12,008.07 and 2,161.53 is: 3,241.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,006.40 : 12,008.07 = 2,161.53 : x
  2. Step 2: Convert to fraction form
    8,006.40/12,008.07 = 2,161.53/x
  3. Step 3: Cross multiply
    8,006.40x = 12,008.07 × 2,161.53
  4. Step 4: Simplify right side
    8,006.40x = 25,955,803.55
  5. Step 5: Solve for x
    x = 25,955,803.55/8,006.40
  6. Step 6: Final answer
    x = 3,241.88

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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.