Home / 18,738.83-25,859.99-10,781.59

Finding the Fourth Proportional to 18,738.83, 25,859.99 and 10,781.59

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Solution

The fourth proportional to 18,738.83, 25,859.99 and 10,781.59 is: 14,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.83 : 25,859.99 = 10,781.59 : x
  2. Step 2: Convert to fraction form
    18,738.83/25,859.99 = 10,781.59/x
  3. Step 3: Cross multiply
    18,738.83x = 25,859.99 × 10,781.59
  4. Step 4: Simplify right side
    18,738.83x = 278,811,809.58
  5. Step 5: Solve for x
    x = 278,811,809.58/18,738.83
  6. Step 6: Final answer
    x = 14,878.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.