Home / 19,912.56-27,479.12-10,959.87

Finding the Fourth Proportional to 19,912.56, 27,479.12 and 10,959.87

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Solution

The fourth proportional to 19,912.56, 27,479.12 and 10,959.87 is: 15,124.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.56 : 27,479.12 = 10,959.87 : x
  2. Step 2: Convert to fraction form
    19,912.56/27,479.12 = 10,959.87/x
  3. Step 3: Cross multiply
    19,912.56x = 27,479.12 × 10,959.87
  4. Step 4: Simplify right side
    19,912.56x = 301,167,469.69
  5. Step 5: Solve for x
    x = 301,167,469.69/19,912.56
  6. Step 6: Final answer
    x = 15,124.50

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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.