Home / 8,557.62-11,815.32-5,540.02

Finding the Fourth Proportional to 8,557.62, 11,815.32 and 5,540.02

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Solution

The fourth proportional to 8,557.62, 11,815.32 and 5,540.02 is: 7,648.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.62 : 11,815.32 = 5,540.02 : x
  2. Step 2: Convert to fraction form
    8,557.62/11,815.32 = 5,540.02/x
  3. Step 3: Cross multiply
    8,557.62x = 11,815.32 × 5,540.02
  4. Step 4: Simplify right side
    8,557.62x = 65,457,109.11
  5. Step 5: Solve for x
    x = 65,457,109.11/8,557.62
  6. Step 6: Final answer
    x = 7,648.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.