Home / 18,729.85-25,852.62-12,361.09

Finding the Fourth Proportional to 18,729.85, 25,852.62 and 12,361.09

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Solution

The fourth proportional to 18,729.85, 25,852.62 and 12,361.09 is: 17,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.85 : 25,852.62 = 12,361.09 : x
  2. Step 2: Convert to fraction form
    18,729.85/25,852.62 = 12,361.09/x
  3. Step 3: Cross multiply
    18,729.85x = 25,852.62 × 12,361.09
  4. Step 4: Simplify right side
    18,729.85x = 319,566,562.56
  5. Step 5: Solve for x
    x = 319,566,562.56/18,729.85
  6. Step 6: Final answer
    x = 17,061.89

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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.