Home / 18,787.37-28,136.32-10,873.22

Finding the Fourth Proportional to 18,787.37, 28,136.32 and 10,873.22

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Solution

The fourth proportional to 18,787.37, 28,136.32 and 10,873.22 is: 16,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.37 : 28,136.32 = 10,873.22 : x
  2. Step 2: Convert to fraction form
    18,787.37/28,136.32 = 10,873.22/x
  3. Step 3: Cross multiply
    18,787.37x = 28,136.32 × 10,873.22
  4. Step 4: Simplify right side
    18,787.37x = 305,932,229.49
  5. Step 5: Solve for x
    x = 305,932,229.49/18,787.37
  6. Step 6: Final answer
    x = 16,283.93

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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.