Home / 12,286.33-18,425.72-3,518.89

Finding the Fourth Proportional to 12,286.33, 18,425.72 and 3,518.89

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Solution

The fourth proportional to 12,286.33, 18,425.72 and 3,518.89 is: 5,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.33 : 18,425.72 = 3,518.89 : x
  2. Step 2: Convert to fraction form
    12,286.33/18,425.72 = 3,518.89/x
  3. Step 3: Cross multiply
    12,286.33x = 18,425.72 × 3,518.89
  4. Step 4: Simplify right side
    12,286.33x = 64,838,064.26
  5. Step 5: Solve for x
    x = 64,838,064.26/12,286.33
  6. Step 6: Final answer
    x = 5,277.25

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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.