Home / 19,760.70-27,270.17-10,808.79

Finding the Fourth Proportional to 19,760.70, 27,270.17 and 10,808.79

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Solution

The fourth proportional to 19,760.70, 27,270.17 and 10,808.79 is: 14,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.70 : 27,270.17 = 10,808.79 : x
  2. Step 2: Convert to fraction form
    19,760.70/27,270.17 = 10,808.79/x
  3. Step 3: Cross multiply
    19,760.70x = 27,270.17 × 10,808.79
  4. Step 4: Simplify right side
    19,760.70x = 294,757,540.79
  5. Step 5: Solve for x
    x = 294,757,540.79/19,760.70
  6. Step 6: Final answer
    x = 14,916.35

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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.