Home / 12,912.41-19,366.49-12,071.84

Finding the Fourth Proportional to 12,912.41, 19,366.49 and 12,071.84

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Solution

The fourth proportional to 12,912.41, 19,366.49 and 12,071.84 is: 18,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.41 : 19,366.49 = 12,071.84 : x
  2. Step 2: Convert to fraction form
    12,912.41/19,366.49 = 12,071.84/x
  3. Step 3: Cross multiply
    12,912.41x = 19,366.49 × 12,071.84
  4. Step 4: Simplify right side
    12,912.41x = 233,789,101.99
  5. Step 5: Solve for x
    x = 233,789,101.99/12,912.41
  6. Step 6: Final answer
    x = 18,105.76

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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.