Home / 12,269.64-16,911.89-8,679.96

Finding the Fourth Proportional to 12,269.64, 16,911.89 and 8,679.96

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Solution

The fourth proportional to 12,269.64, 16,911.89 and 8,679.96 is: 11,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.64 : 16,911.89 = 8,679.96 : x
  2. Step 2: Convert to fraction form
    12,269.64/16,911.89 = 8,679.96/x
  3. Step 3: Cross multiply
    12,269.64x = 16,911.89 × 8,679.96
  4. Step 4: Simplify right side
    12,269.64x = 146,794,485.32
  5. Step 5: Solve for x
    x = 146,794,485.32/12,269.64
  6. Step 6: Final answer
    x = 11,964.04

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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.