Home / 12,286.52-18,340.37-11,373.65

Finding the Fourth Proportional to 12,286.52, 18,340.37 and 11,373.65

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Solution

The fourth proportional to 12,286.52, 18,340.37 and 11,373.65 is: 16,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.52 : 18,340.37 = 11,373.65 : x
  2. Step 2: Convert to fraction form
    12,286.52/18,340.37 = 11,373.65/x
  3. Step 3: Cross multiply
    12,286.52x = 18,340.37 × 11,373.65
  4. Step 4: Simplify right side
    12,286.52x = 208,596,885.98
  5. Step 5: Solve for x
    x = 208,596,885.98/12,286.52
  6. Step 6: Final answer
    x = 16,977.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.