Home / 10,629.65-15,943.80-3,609.65

Finding the Fourth Proportional to 10,629.65, 15,943.80 and 3,609.65

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Solution

The fourth proportional to 10,629.65, 15,943.80 and 3,609.65 is: 5,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.65 : 15,943.80 = 3,609.65 : x
  2. Step 2: Convert to fraction form
    10,629.65/15,943.80 = 3,609.65/x
  3. Step 3: Cross multiply
    10,629.65x = 15,943.80 × 3,609.65
  4. Step 4: Simplify right side
    10,629.65x = 57,551,537.67
  5. Step 5: Solve for x
    x = 57,551,537.67/10,629.65
  6. Step 6: Final answer
    x = 5,414.25

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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.