Home / 12,471.54-18,705.39-4,151.70

Finding the Fourth Proportional to 12,471.54, 18,705.39 and 4,151.70

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Solution

The fourth proportional to 12,471.54, 18,705.39 and 4,151.70 is: 6,226.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.54 : 18,705.39 = 4,151.70 : x
  2. Step 2: Convert to fraction form
    12,471.54/18,705.39 = 4,151.70/x
  3. Step 3: Cross multiply
    12,471.54x = 18,705.39 × 4,151.70
  4. Step 4: Simplify right side
    12,471.54x = 77,659,167.66
  5. Step 5: Solve for x
    x = 77,659,167.66/12,471.54
  6. Step 6: Final answer
    x = 6,226.91

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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.