Home / 7,767.82-11,651.66-5,147.06

Finding the Fourth Proportional to 7,767.82, 11,651.66 and 5,147.06

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Solution

The fourth proportional to 7,767.82, 11,651.66 and 5,147.06 is: 7,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.82 : 11,651.66 = 5,147.06 : x
  2. Step 2: Convert to fraction form
    7,767.82/11,651.66 = 5,147.06/x
  3. Step 3: Cross multiply
    7,767.82x = 11,651.66 × 5,147.06
  4. Step 4: Simplify right side
    7,767.82x = 59,971,796.51
  5. Step 5: Solve for x
    x = 59,971,796.51/7,767.82
  6. Step 6: Final answer
    x = 7,720.55

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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.