Home / 12,966.62-17,894.30-7,930.75

Finding the Fourth Proportional to 12,966.62, 17,894.30 and 7,930.75

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Solution

The fourth proportional to 12,966.62, 17,894.30 and 7,930.75 is: 10,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.62 : 17,894.30 = 7,930.75 : x
  2. Step 2: Convert to fraction form
    12,966.62/17,894.30 = 7,930.75/x
  3. Step 3: Cross multiply
    12,966.62x = 17,894.30 × 7,930.75
  4. Step 4: Simplify right side
    12,966.62x = 141,915,219.73
  5. Step 5: Solve for x
    x = 141,915,219.73/12,966.62
  6. Step 6: Final answer
    x = 10,944.66

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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.