Home / 18,817.35-28,232.46-11,788.98

Finding the Fourth Proportional to 18,817.35, 28,232.46 and 11,788.98

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Solution

The fourth proportional to 18,817.35, 28,232.46 and 11,788.98 is: 17,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.35 : 28,232.46 = 11,788.98 : x
  2. Step 2: Convert to fraction form
    18,817.35/28,232.46 = 11,788.98/x
  3. Step 3: Cross multiply
    18,817.35x = 28,232.46 × 11,788.98
  4. Step 4: Simplify right side
    18,817.35x = 332,831,906.29
  5. Step 5: Solve for x
    x = 332,831,906.29/18,817.35
  6. Step 6: Final answer
    x = 17,687.50

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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.