Home / 8,819.27-12,170.18-4,840.30

Finding the Fourth Proportional to 8,819.27, 12,170.18 and 4,840.30

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Solution

The fourth proportional to 8,819.27, 12,170.18 and 4,840.30 is: 6,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.27 : 12,170.18 = 4,840.30 : x
  2. Step 2: Convert to fraction form
    8,819.27/12,170.18 = 4,840.30/x
  3. Step 3: Cross multiply
    8,819.27x = 12,170.18 × 4,840.30
  4. Step 4: Simplify right side
    8,819.27x = 58,907,237.20
  5. Step 5: Solve for x
    x = 58,907,237.20/8,819.27
  6. Step 6: Final answer
    x = 6,679.38

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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.