Home / 13,110.41-18,109.69-9,714.33

Finding the Fourth Proportional to 13,110.41, 18,109.69 and 9,714.33

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Solution

The fourth proportional to 13,110.41, 18,109.69 and 9,714.33 is: 13,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.41 : 18,109.69 = 9,714.33 : x
  2. Step 2: Convert to fraction form
    13,110.41/18,109.69 = 9,714.33/x
  3. Step 3: Cross multiply
    13,110.41x = 18,109.69 × 9,714.33
  4. Step 4: Simplify right side
    13,110.41x = 175,923,480.57
  5. Step 5: Solve for x
    x = 175,923,480.57/13,110.41
  6. Step 6: Final answer
    x = 13,418.61

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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.