Home / 12,439.28-18,658.96-6,206.94

Finding the Fourth Proportional to 12,439.28, 18,658.96 and 6,206.94

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Solution

The fourth proportional to 12,439.28, 18,658.96 and 6,206.94 is: 9,310.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.28 : 18,658.96 = 6,206.94 : x
  2. Step 2: Convert to fraction form
    12,439.28/18,658.96 = 6,206.94/x
  3. Step 3: Cross multiply
    12,439.28x = 18,658.96 × 6,206.94
  4. Step 4: Simplify right side
    12,439.28x = 115,815,029.67
  5. Step 5: Solve for x
    x = 115,815,029.67/12,439.28
  6. Step 6: Final answer
    x = 9,310.43

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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.