Home / 12,686.07-17,523.51-9,738.33

Finding the Fourth Proportional to 12,686.07, 17,523.51 and 9,738.33

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Solution

The fourth proportional to 12,686.07, 17,523.51 and 9,738.33 is: 13,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.07 : 17,523.51 = 9,738.33 : x
  2. Step 2: Convert to fraction form
    12,686.07/17,523.51 = 9,738.33/x
  3. Step 3: Cross multiply
    12,686.07x = 17,523.51 × 9,738.33
  4. Step 4: Simplify right side
    12,686.07x = 170,649,723.14
  5. Step 5: Solve for x
    x = 170,649,723.14/12,686.07
  6. Step 6: Final answer
    x = 13,451.74

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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.