Home / 7,707.82-11,561.74-1,864.44

Finding the Fourth Proportional to 7,707.82, 11,561.74 and 1,864.44

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Solution

The fourth proportional to 7,707.82, 11,561.74 and 1,864.44 is: 2,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.82 : 11,561.74 = 1,864.44 : x
  2. Step 2: Convert to fraction form
    7,707.82/11,561.74 = 1,864.44/x
  3. Step 3: Cross multiply
    7,707.82x = 11,561.74 × 1,864.44
  4. Step 4: Simplify right side
    7,707.82x = 21,556,170.53
  5. Step 5: Solve for x
    x = 21,556,170.53/7,707.82
  6. Step 6: Final answer
    x = 2,796.66

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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.