Home / 19,912.16-27,478.88-10,960.56

Finding the Fourth Proportional to 19,912.16, 27,478.88 and 10,960.56

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Solution

The fourth proportional to 19,912.16, 27,478.88 and 10,960.56 is: 15,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.16 : 27,478.88 = 10,960.56 : x
  2. Step 2: Convert to fraction form
    19,912.16/27,478.88 = 10,960.56/x
  3. Step 3: Cross multiply
    19,912.16x = 27,478.88 × 10,960.56
  4. Step 4: Simplify right side
    19,912.16x = 301,183,912.97
  5. Step 5: Solve for x
    x = 301,183,912.97/19,912.16
  6. Step 6: Final answer
    x = 15,125.63

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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.