Home / 8,115.72-11,202.12-4,759.44

Finding the Fourth Proportional to 8,115.72, 11,202.12 and 4,759.44

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Solution

The fourth proportional to 8,115.72, 11,202.12 and 4,759.44 is: 6,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.72 : 11,202.12 = 4,759.44 : x
  2. Step 2: Convert to fraction form
    8,115.72/11,202.12 = 4,759.44/x
  3. Step 3: Cross multiply
    8,115.72x = 11,202.12 × 4,759.44
  4. Step 4: Simplify right side
    8,115.72x = 53,315,818.01
  5. Step 5: Solve for x
    x = 53,315,818.01/8,115.72
  6. Step 6: Final answer
    x = 6,569.45

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Half scale
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1.5x scale

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.