Home / 8,439.60-12,655.14-3,995.94

Finding the Fourth Proportional to 8,439.60, 12,655.14 and 3,995.94

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Solution

The fourth proportional to 8,439.60, 12,655.14 and 3,995.94 is: 5,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.60 : 12,655.14 = 3,995.94 : x
  2. Step 2: Convert to fraction form
    8,439.60/12,655.14 = 3,995.94/x
  3. Step 3: Cross multiply
    8,439.60x = 12,655.14 × 3,995.94
  4. Step 4: Simplify right side
    8,439.60x = 50,569,180.13
  5. Step 5: Solve for x
    x = 50,569,180.13/8,439.60
  6. Step 6: Final answer
    x = 5,991.89

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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.