Home / 8,439.40-12,659.82-2,200.24

Finding the Fourth Proportional to 8,439.40, 12,659.82 and 2,200.24

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Solution

The fourth proportional to 8,439.40, 12,659.82 and 2,200.24 is: 3,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.40 : 12,659.82 = 2,200.24 : x
  2. Step 2: Convert to fraction form
    8,439.40/12,659.82 = 2,200.24/x
  3. Step 3: Cross multiply
    8,439.40x = 12,659.82 × 2,200.24
  4. Step 4: Simplify right side
    8,439.40x = 27,854,642.36
  5. Step 5: Solve for x
    x = 27,854,642.36/8,439.40
  6. Step 6: Final answer
    x = 3,300.55

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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.