Home / 18,632.50-25,711.29-10,974.56

Finding the Fourth Proportional to 18,632.50, 25,711.29 and 10,974.56

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Solution

The fourth proportional to 18,632.50, 25,711.29 and 10,974.56 is: 15,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,632.50 : 25,711.29 = 10,974.56 : x
  2. Step 2: Convert to fraction form
    18,632.50/25,711.29 = 10,974.56/x
  3. Step 3: Cross multiply
    18,632.50x = 25,711.29 × 10,974.56
  4. Step 4: Simplify right side
    18,632.50x = 282,169,966.23
  5. Step 5: Solve for x
    x = 282,169,966.23/18,632.50
  6. Step 6: Final answer
    x = 15,143.97

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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.