Home / 18,580.08-27,872.58-9,815.34

Finding the Fourth Proportional to 18,580.08, 27,872.58 and 9,815.34

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Solution

The fourth proportional to 18,580.08, 27,872.58 and 9,815.34 is: 14,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.08 : 27,872.58 = 9,815.34 : x
  2. Step 2: Convert to fraction form
    18,580.08/27,872.58 = 9,815.34/x
  3. Step 3: Cross multiply
    18,580.08x = 27,872.58 × 9,815.34
  4. Step 4: Simplify right side
    18,580.08x = 273,578,849.38
  5. Step 5: Solve for x
    x = 273,578,849.38/18,580.08
  6. Step 6: Final answer
    x = 14,724.31

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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.