Home / 19,890.06-29,844.79-9,361.12

Finding the Fourth Proportional to 19,890.06, 29,844.79 and 9,361.12

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Solution

The fourth proportional to 19,890.06, 29,844.79 and 9,361.12 is: 14,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.06 : 29,844.79 = 9,361.12 : x
  2. Step 2: Convert to fraction form
    19,890.06/29,844.79 = 9,361.12/x
  3. Step 3: Cross multiply
    19,890.06x = 29,844.79 × 9,361.12
  4. Step 4: Simplify right side
    19,890.06x = 279,380,660.56
  5. Step 5: Solve for x
    x = 279,380,660.56/19,890.06
  6. Step 6: Final answer
    x = 14,046.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.