Home / 12,268.24-16,930.16-6,679.28

Finding the Fourth Proportional to 12,268.24, 16,930.16 and 6,679.28

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Solution

The fourth proportional to 12,268.24, 16,930.16 and 6,679.28 is: 9,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.24 : 16,930.16 = 6,679.28 : x
  2. Step 2: Convert to fraction form
    12,268.24/16,930.16 = 6,679.28/x
  3. Step 3: Cross multiply
    12,268.24x = 16,930.16 × 6,679.28
  4. Step 4: Simplify right side
    12,268.24x = 113,081,279.08
  5. Step 5: Solve for x
    x = 113,081,279.08/12,268.24
  6. Step 6: Final answer
    x = 9,217.40

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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.