Home / 18,286.40-25,235.02-10,731.38

Finding the Fourth Proportional to 18,286.40, 25,235.02 and 10,731.38

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Solution

The fourth proportional to 18,286.40, 25,235.02 and 10,731.38 is: 14,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.40 : 25,235.02 = 10,731.38 : x
  2. Step 2: Convert to fraction form
    18,286.40/25,235.02 = 10,731.38/x
  3. Step 3: Cross multiply
    18,286.40x = 25,235.02 × 10,731.38
  4. Step 4: Simplify right side
    18,286.40x = 270,806,588.93
  5. Step 5: Solve for x
    x = 270,806,588.93/18,286.40
  6. Step 6: Final answer
    x = 14,809.18

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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.