Home / 12,265.86-16,930.52-7,231.71

Finding the Fourth Proportional to 12,265.86, 16,930.52 and 7,231.71

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Solution

The fourth proportional to 12,265.86, 16,930.52 and 7,231.71 is: 9,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.86 : 16,930.52 = 7,231.71 : x
  2. Step 2: Convert to fraction form
    12,265.86/16,930.52 = 7,231.71/x
  3. Step 3: Cross multiply
    12,265.86x = 16,930.52 × 7,231.71
  4. Step 4: Simplify right side
    12,265.86x = 122,436,610.79
  5. Step 5: Solve for x
    x = 122,436,610.79/12,265.86
  6. Step 6: Final answer
    x = 9,981.90

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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.