Home / 10,506.72-15,761.64-3,579.60

Finding the Fourth Proportional to 10,506.72, 15,761.64 and 3,579.60

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Solution

The fourth proportional to 10,506.72, 15,761.64 and 3,579.60 is: 5,369.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.72 : 15,761.64 = 3,579.60 : x
  2. Step 2: Convert to fraction form
    10,506.72/15,761.64 = 3,579.60/x
  3. Step 3: Cross multiply
    10,506.72x = 15,761.64 × 3,579.60
  4. Step 4: Simplify right side
    10,506.72x = 56,420,366.54
  5. Step 5: Solve for x
    x = 56,420,366.54/10,506.72
  6. Step 6: Final answer
    x = 5,369.93

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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.