Home / 12,217.69-16,860.75-6,839.96

Finding the Fourth Proportional to 12,217.69, 16,860.75 and 6,839.96

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Solution

The fourth proportional to 12,217.69, 16,860.75 and 6,839.96 is: 9,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.69 : 16,860.75 = 6,839.96 : x
  2. Step 2: Convert to fraction form
    12,217.69/16,860.75 = 6,839.96/x
  3. Step 3: Cross multiply
    12,217.69x = 16,860.75 × 6,839.96
  4. Step 4: Simplify right side
    12,217.69x = 115,326,855.57
  5. Step 5: Solve for x
    x = 115,326,855.57/12,217.69
  6. Step 6: Final answer
    x = 9,439.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.