Home / 8,115.23-12,171.08-2,569.02

Finding the Fourth Proportional to 8,115.23, 12,171.08 and 2,569.02

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Solution

The fourth proportional to 8,115.23, 12,171.08 and 2,569.02 is: 3,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.23 : 12,171.08 = 2,569.02 : x
  2. Step 2: Convert to fraction form
    8,115.23/12,171.08 = 2,569.02/x
  3. Step 3: Cross multiply
    8,115.23x = 12,171.08 × 2,569.02
  4. Step 4: Simplify right side
    8,115.23x = 31,267,735.10
  5. Step 5: Solve for x
    x = 31,267,735.10/8,115.23
  6. Step 6: Final answer
    x = 3,852.97

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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.