Home / 12,339.20-18,506.73-4,440.11

Finding the Fourth Proportional to 12,339.20, 18,506.73 and 4,440.11

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Solution

The fourth proportional to 12,339.20, 18,506.73 and 4,440.11 is: 6,659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.20 : 18,506.73 = 4,440.11 : x
  2. Step 2: Convert to fraction form
    12,339.20/18,506.73 = 4,440.11/x
  3. Step 3: Cross multiply
    12,339.20x = 18,506.73 × 4,440.11
  4. Step 4: Simplify right side
    12,339.20x = 82,171,824.41
  5. Step 5: Solve for x
    x = 82,171,824.41/12,339.20
  6. Step 6: Final answer
    x = 6,659.42

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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.