Home / 7,863.25-11,794.88-5,390.58

Finding the Fourth Proportional to 7,863.25, 11,794.88 and 5,390.58

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Solution

The fourth proportional to 7,863.25, 11,794.88 and 5,390.58 is: 8,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.25 : 11,794.88 = 5,390.58 : x
  2. Step 2: Convert to fraction form
    7,863.25/11,794.88 = 5,390.58/x
  3. Step 3: Cross multiply
    7,863.25x = 11,794.88 × 5,390.58
  4. Step 4: Simplify right side
    7,863.25x = 63,581,219.00
  5. Step 5: Solve for x
    x = 63,581,219.00/7,863.25
  6. Step 6: Final answer
    x = 8,085.87

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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.