Home / 13,553.37-20,338.98-4,787.97

Finding the Fourth Proportional to 13,553.37, 20,338.98 and 4,787.97

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Solution

The fourth proportional to 13,553.37, 20,338.98 and 4,787.97 is: 7,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.37 : 20,338.98 = 4,787.97 : x
  2. Step 2: Convert to fraction form
    13,553.37/20,338.98 = 4,787.97/x
  3. Step 3: Cross multiply
    13,553.37x = 20,338.98 × 4,787.97
  4. Step 4: Simplify right side
    13,553.37x = 97,382,426.07
  5. Step 5: Solve for x
    x = 97,382,426.07/13,553.37
  6. Step 6: Final answer
    x = 7,185.11

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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.