Home / 12,188.05-18,281.93-3,867.84

Finding the Fourth Proportional to 12,188.05, 18,281.93 and 3,867.84

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Solution

The fourth proportional to 12,188.05, 18,281.93 and 3,867.84 is: 5,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.05 : 18,281.93 = 3,867.84 : x
  2. Step 2: Convert to fraction form
    12,188.05/18,281.93 = 3,867.84/x
  3. Step 3: Cross multiply
    12,188.05x = 18,281.93 × 3,867.84
  4. Step 4: Simplify right side
    12,188.05x = 70,711,560.79
  5. Step 5: Solve for x
    x = 70,711,560.79/12,188.05
  6. Step 6: Final answer
    x = 5,801.71

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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.