Home / 8,074.30-11,142.78-4,888.18

Finding the Fourth Proportional to 8,074.30, 11,142.78 and 4,888.18

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Solution

The fourth proportional to 8,074.30, 11,142.78 and 4,888.18 is: 6,745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.30 : 11,142.78 = 4,888.18 : x
  2. Step 2: Convert to fraction form
    8,074.30/11,142.78 = 4,888.18/x
  3. Step 3: Cross multiply
    8,074.30x = 11,142.78 × 4,888.18
  4. Step 4: Simplify right side
    8,074.30x = 54,467,858.63
  5. Step 5: Solve for x
    x = 54,467,858.63/8,074.30
  6. Step 6: Final answer
    x = 6,745.83

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Half scale
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Double 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.