Home / 10,623.78-15,930.81-3,229.02

Finding the Fourth Proportional to 10,623.78, 15,930.81 and 3,229.02

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Solution

The fourth proportional to 10,623.78, 15,930.81 and 3,229.02 is: 4,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,623.78 : 15,930.81 = 3,229.02 : x
  2. Step 2: Convert to fraction form
    10,623.78/15,930.81 = 3,229.02/x
  3. Step 3: Cross multiply
    10,623.78x = 15,930.81 × 3,229.02
  4. Step 4: Simplify right side
    10,623.78x = 51,440,904.11
  5. Step 5: Solve for x
    x = 51,440,904.11/10,623.78
  6. Step 6: Final answer
    x = 4,842.05

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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.