Home / 18,956.28-26,160.78-10,995.60

Finding the Fourth Proportional to 18,956.28, 26,160.78 and 10,995.60

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Solution

The fourth proportional to 18,956.28, 26,160.78 and 10,995.60 is: 15,174.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.28 : 26,160.78 = 10,995.60 : x
  2. Step 2: Convert to fraction form
    18,956.28/26,160.78 = 10,995.60/x
  3. Step 3: Cross multiply
    18,956.28x = 26,160.78 × 10,995.60
  4. Step 4: Simplify right side
    18,956.28x = 287,653,472.57
  5. Step 5: Solve for x
    x = 287,653,472.57/18,956.28
  6. Step 6: Final answer
    x = 15,174.57

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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.