Home / 7,863.16-11,789.52-3,116.17

Finding the Fourth Proportional to 7,863.16, 11,789.52 and 3,116.17

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Solution

The fourth proportional to 7,863.16, 11,789.52 and 3,116.17 is: 4,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.16 : 11,789.52 = 3,116.17 : x
  2. Step 2: Convert to fraction form
    7,863.16/11,789.52 = 3,116.17/x
  3. Step 3: Cross multiply
    7,863.16x = 11,789.52 × 3,116.17
  4. Step 4: Simplify right side
    7,863.16x = 36,738,148.54
  5. Step 5: Solve for x
    x = 36,738,148.54/7,863.16
  6. Step 6: Final answer
    x = 4,672.19

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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.