Home / 18,286.07-25,234.82-9,902.57

Finding the Fourth Proportional to 18,286.07, 25,234.82 and 9,902.57

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Solution

The fourth proportional to 18,286.07, 25,234.82 and 9,902.57 is: 13,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.07 : 25,234.82 = 9,902.57 : x
  2. Step 2: Convert to fraction form
    18,286.07/25,234.82 = 9,902.57/x
  3. Step 3: Cross multiply
    18,286.07x = 25,234.82 × 9,902.57
  4. Step 4: Simplify right side
    18,286.07x = 249,889,395.80
  5. Step 5: Solve for x
    x = 249,889,395.80/18,286.07
  6. Step 6: Final answer
    x = 13,665.56

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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.