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Finding the Fourth Proportional to 8,797.78, 12,144.84 and 5,615.26

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Solution

The fourth proportional to 8,797.78, 12,144.84 and 5,615.26 is: 7,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.78 : 12,144.84 = 5,615.26 : x
  2. Step 2: Convert to fraction form
    8,797.78/12,144.84 = 5,615.26/x
  3. Step 3: Cross multiply
    8,797.78x = 12,144.84 × 5,615.26
  4. Step 4: Simplify right side
    8,797.78x = 68,196,382.84
  5. Step 5: Solve for x
    x = 68,196,382.84/8,797.78
  6. Step 6: Final answer
    x = 7,751.54

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Half scale
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Double scale
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Similar ratio
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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.