Home / 7,778.06-11,651.55-5,306.75

Finding the Fourth Proportional to 7,778.06, 11,651.55 and 5,306.75

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Solution

The fourth proportional to 7,778.06, 11,651.55 and 5,306.75 is: 7,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.06 : 11,651.55 = 5,306.75 : x
  2. Step 2: Convert to fraction form
    7,778.06/11,651.55 = 5,306.75/x
  3. Step 3: Cross multiply
    7,778.06x = 11,651.55 × 5,306.75
  4. Step 4: Simplify right side
    7,778.06x = 61,831,862.96
  5. Step 5: Solve for x
    x = 61,831,862.96/7,778.06
  6. Step 6: Final answer
    x = 7,949.52

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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.