Home / 18,781.80-25,891.26-14,297.75

Finding the Fourth Proportional to 18,781.80, 25,891.26 and 14,297.75

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Solution

The fourth proportional to 18,781.80, 25,891.26 and 14,297.75 is: 19,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.80 : 25,891.26 = 14,297.75 : x
  2. Step 2: Convert to fraction form
    18,781.80/25,891.26 = 14,297.75/x
  3. Step 3: Cross multiply
    18,781.80x = 25,891.26 × 14,297.75
  4. Step 4: Simplify right side
    18,781.80x = 370,186,762.67
  5. Step 5: Solve for x
    x = 370,186,762.67/18,781.80
  6. Step 6: Final answer
    x = 19,709.87

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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.