Home / 7,863.33-10,855.89-5,214.35

Finding the Fourth Proportional to 7,863.33, 10,855.89 and 5,214.35

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Solution

The fourth proportional to 7,863.33, 10,855.89 and 5,214.35 is: 7,198.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.33 : 10,855.89 = 5,214.35 : x
  2. Step 2: Convert to fraction form
    7,863.33/10,855.89 = 5,214.35/x
  3. Step 3: Cross multiply
    7,863.33x = 10,855.89 × 5,214.35
  4. Step 4: Simplify right side
    7,863.33x = 56,606,355.74
  5. Step 5: Solve for x
    x = 56,606,355.74/7,863.33
  6. Step 6: Final answer
    x = 7,198.78

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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.