Home / 12,387.84-18,584.82-6,150.78

Finding the Fourth Proportional to 12,387.84, 18,584.82 and 6,150.78

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Solution

The fourth proportional to 12,387.84, 18,584.82 and 6,150.78 is: 9,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.84 : 18,584.82 = 6,150.78 : x
  2. Step 2: Convert to fraction form
    12,387.84/18,584.82 = 6,150.78/x
  3. Step 3: Cross multiply
    12,387.84x = 18,584.82 × 6,150.78
  4. Step 4: Simplify right side
    12,387.84x = 114,311,139.16
  5. Step 5: Solve for x
    x = 114,311,139.16/12,387.84
  6. Step 6: Final answer
    x = 9,227.69

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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.