Home / 9,815.78-14,721.55-2,795.72

Finding the Fourth Proportional to 9,815.78, 14,721.55 and 2,795.72

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Solution

The fourth proportional to 9,815.78, 14,721.55 and 2,795.72 is: 4,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.78 : 14,721.55 = 2,795.72 : x
  2. Step 2: Convert to fraction form
    9,815.78/14,721.55 = 2,795.72/x
  3. Step 3: Cross multiply
    9,815.78x = 14,721.55 × 2,795.72
  4. Step 4: Simplify right side
    9,815.78x = 41,157,251.17
  5. Step 5: Solve for x
    x = 41,157,251.17/9,815.78
  6. Step 6: Final answer
    x = 4,192.97

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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.