Home / 12,268.56-16,930.80-6,679.56

Finding the Fourth Proportional to 12,268.56, 16,930.80 and 6,679.56

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Solution

The fourth proportional to 12,268.56, 16,930.80 and 6,679.56 is: 9,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.56 : 16,930.80 = 6,679.56 : x
  2. Step 2: Convert to fraction form
    12,268.56/16,930.80 = 6,679.56/x
  3. Step 3: Cross multiply
    12,268.56x = 16,930.80 × 6,679.56
  4. Step 4: Simplify right side
    12,268.56x = 113,090,294.45
  5. Step 5: Solve for x
    x = 113,090,294.45/12,268.56
  6. Step 6: Final answer
    x = 9,217.89

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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.