Home / 12,439.68-17,166.76-6,850.68

Finding the Fourth Proportional to 12,439.68, 17,166.76 and 6,850.68

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Solution

The fourth proportional to 12,439.68, 17,166.76 and 6,850.68 is: 9,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.68 : 17,166.76 = 6,850.68 : x
  2. Step 2: Convert to fraction form
    12,439.68/17,166.76 = 6,850.68/x
  3. Step 3: Cross multiply
    12,439.68x = 17,166.76 × 6,850.68
  4. Step 4: Simplify right side
    12,439.68x = 117,603,979.40
  5. Step 5: Solve for x
    x = 117,603,979.40/12,439.68
  6. Step 6: Final answer
    x = 9,453.94

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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.