Home / 12,471.46-17,212.76-11,910.94

Finding the Fourth Proportional to 12,471.46, 17,212.76 and 11,910.94

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Solution

The fourth proportional to 12,471.46, 17,212.76 and 11,910.94 is: 16,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.46 : 17,212.76 = 11,910.94 : x
  2. Step 2: Convert to fraction form
    12,471.46/17,212.76 = 11,910.94/x
  3. Step 3: Cross multiply
    12,471.46x = 17,212.76 × 11,910.94
  4. Step 4: Simplify right side
    12,471.46x = 205,020,151.59
  5. Step 5: Solve for x
    x = 205,020,151.59/12,471.46
  6. Step 6: Final answer
    x = 16,439.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.