Home / 12,743.11-17,585.87-7,708.25

Finding the Fourth Proportional to 12,743.11, 17,585.87 and 7,708.25

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Solution

The fourth proportional to 12,743.11, 17,585.87 and 7,708.25 is: 10,637.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.11 : 17,585.87 = 7,708.25 : x
  2. Step 2: Convert to fraction form
    12,743.11/17,585.87 = 7,708.25/x
  3. Step 3: Cross multiply
    12,743.11x = 17,585.87 × 7,708.25
  4. Step 4: Simplify right side
    12,743.11x = 135,556,282.43
  5. Step 5: Solve for x
    x = 135,556,282.43/12,743.11
  6. Step 6: Final answer
    x = 10,637.61

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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.