Home / 12,426.12-18,635.49-6,579.54

Finding the Fourth Proportional to 12,426.12, 18,635.49 and 6,579.54

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Solution

The fourth proportional to 12,426.12, 18,635.49 and 6,579.54 is: 9,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.12 : 18,635.49 = 6,579.54 : x
  2. Step 2: Convert to fraction form
    12,426.12/18,635.49 = 6,579.54/x
  3. Step 3: Cross multiply
    12,426.12x = 18,635.49 × 6,579.54
  4. Step 4: Simplify right side
    12,426.12x = 122,612,951.87
  5. Step 5: Solve for x
    x = 122,612,951.87/12,426.12
  6. Step 6: Final answer
    x = 9,867.36

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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.