Home / 19,760.76-27,266.85-11,146.56

Finding the Fourth Proportional to 19,760.76, 27,266.85 and 11,146.56

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Solution

The fourth proportional to 19,760.76, 27,266.85 and 11,146.56 is: 15,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.76 : 27,266.85 = 11,146.56 : x
  2. Step 2: Convert to fraction form
    19,760.76/27,266.85 = 11,146.56/x
  3. Step 3: Cross multiply
    19,760.76x = 27,266.85 × 11,146.56
  4. Step 4: Simplify right side
    19,760.76x = 303,931,579.54
  5. Step 5: Solve for x
    x = 303,931,579.54/19,760.76
  6. Step 6: Final answer
    x = 15,380.56

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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.