Home / 18,052.90-27,075.30-11,856.40

Finding the Fourth Proportional to 18,052.90, 27,075.30 and 11,856.40

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Solution

The fourth proportional to 18,052.90, 27,075.30 and 11,856.40 is: 17,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,052.90 : 27,075.30 = 11,856.40 : x
  2. Step 2: Convert to fraction form
    18,052.90/27,075.30 = 11,856.40/x
  3. Step 3: Cross multiply
    18,052.90x = 27,075.30 × 11,856.40
  4. Step 4: Simplify right side
    18,052.90x = 321,015,586.92
  5. Step 5: Solve for x
    x = 321,015,586.92/18,052.90
  6. Step 6: Final answer
    x = 17,781.94

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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.