Home / 7,788.11-10,742.78-5,550.70

Finding the Fourth Proportional to 7,788.11, 10,742.78 and 5,550.70

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Solution

The fourth proportional to 7,788.11, 10,742.78 and 5,550.70 is: 7,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.11 : 10,742.78 = 5,550.70 : x
  2. Step 2: Convert to fraction form
    7,788.11/10,742.78 = 5,550.70/x
  3. Step 3: Cross multiply
    7,788.11x = 10,742.78 × 5,550.70
  4. Step 4: Simplify right side
    7,788.11x = 59,629,948.95
  5. Step 5: Solve for x
    x = 59,629,948.95/7,788.11
  6. Step 6: Final answer
    x = 7,656.54

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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.