Home / 7,863.11-11,794.80-2,931.73

Finding the Fourth Proportional to 7,863.11, 11,794.80 and 2,931.73

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Solution

The fourth proportional to 7,863.11, 11,794.80 and 2,931.73 is: 4,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.11 : 11,794.80 = 2,931.73 : x
  2. Step 2: Convert to fraction form
    7,863.11/11,794.80 = 2,931.73/x
  3. Step 3: Cross multiply
    7,863.11x = 11,794.80 × 2,931.73
  4. Step 4: Simplify right side
    7,863.11x = 34,579,169.00
  5. Step 5: Solve for x
    x = 34,579,169.00/7,863.11
  6. Step 6: Final answer
    x = 4,397.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.