Home / 18,826.61-25,979.81-10,871.37

Finding the Fourth Proportional to 18,826.61, 25,979.81 and 10,871.37

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Solution

The fourth proportional to 18,826.61, 25,979.81 and 10,871.37 is: 15,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.61 : 25,979.81 = 10,871.37 : x
  2. Step 2: Convert to fraction form
    18,826.61/25,979.81 = 10,871.37/x
  3. Step 3: Cross multiply
    18,826.61x = 25,979.81 × 10,871.37
  4. Step 4: Simplify right side
    18,826.61x = 282,436,072.68
  5. Step 5: Solve for x
    x = 282,436,072.68/18,826.61
  6. Step 6: Final answer
    x = 15,001.97

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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.