Home / 19,912.79-27,480.11-10,960.52

Finding the Fourth Proportional to 19,912.79, 27,480.11 and 10,960.52

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Solution

The fourth proportional to 19,912.79, 27,480.11 and 10,960.52 is: 15,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.79 : 27,480.11 = 10,960.52 : x
  2. Step 2: Convert to fraction form
    19,912.79/27,480.11 = 10,960.52/x
  3. Step 3: Cross multiply
    19,912.79x = 27,480.11 × 10,960.52
  4. Step 4: Simplify right side
    19,912.79x = 301,196,164.71
  5. Step 5: Solve for x
    x = 301,196,164.71/19,912.79
  6. Step 6: Final answer
    x = 15,125.77

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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.