Home / 12,257.29-18,381.90-3,935.33

Finding the Fourth Proportional to 12,257.29, 18,381.90 and 3,935.33

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Solution

The fourth proportional to 12,257.29, 18,381.90 and 3,935.33 is: 5,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.29 : 18,381.90 = 3,935.33 : x
  2. Step 2: Convert to fraction form
    12,257.29/18,381.90 = 3,935.33/x
  3. Step 3: Cross multiply
    12,257.29x = 18,381.90 × 3,935.33
  4. Step 4: Simplify right side
    12,257.29x = 72,338,834.31
  5. Step 5: Solve for x
    x = 72,338,834.31/12,257.29
  6. Step 6: Final answer
    x = 5,901.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.