Home / 18,243.21-25,175.62-9,859.71

Finding the Fourth Proportional to 18,243.21, 25,175.62 and 9,859.71

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Solution

The fourth proportional to 18,243.21, 25,175.62 and 9,859.71 is: 13,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.21 : 25,175.62 = 9,859.71 : x
  2. Step 2: Convert to fraction form
    18,243.21/25,175.62 = 9,859.71/x
  3. Step 3: Cross multiply
    18,243.21x = 25,175.62 × 9,859.71
  4. Step 4: Simplify right side
    18,243.21x = 248,224,161.74
  5. Step 5: Solve for x
    x = 248,224,161.74/18,243.21
  6. Step 6: Final answer
    x = 13,606.39

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Half scale
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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.