Home / 7,777.39-11,664.87-2,512.21

Finding the Fourth Proportional to 7,777.39, 11,664.87 and 2,512.21

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Solution

The fourth proportional to 7,777.39, 11,664.87 and 2,512.21 is: 3,767.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.39 : 11,664.87 = 2,512.21 : x
  2. Step 2: Convert to fraction form
    7,777.39/11,664.87 = 2,512.21/x
  3. Step 3: Cross multiply
    7,777.39x = 11,664.87 × 2,512.21
  4. Step 4: Simplify right side
    7,777.39x = 29,304,603.06
  5. Step 5: Solve for x
    x = 29,304,603.06/7,777.39
  6. Step 6: Final answer
    x = 3,767.92

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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.