Home / 12,217.52-16,864.24-8,690.96

Finding the Fourth Proportional to 12,217.52, 16,864.24 and 8,690.96

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Solution

The fourth proportional to 12,217.52, 16,864.24 and 8,690.96 is: 11,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.52 : 16,864.24 = 8,690.96 : x
  2. Step 2: Convert to fraction form
    12,217.52/16,864.24 = 8,690.96/x
  3. Step 3: Cross multiply
    12,217.52x = 16,864.24 × 8,690.96
  4. Step 4: Simplify right side
    12,217.52x = 146,566,435.27
  5. Step 5: Solve for x
    x = 146,566,435.27/12,217.52
  6. Step 6: Final answer
    x = 11,996.41

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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.