Home / 8,558.20-12,837.30-5,260.60

Finding the Fourth Proportional to 8,558.20, 12,837.30 and 5,260.60

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Solution

The fourth proportional to 8,558.20, 12,837.30 and 5,260.60 is: 7,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.20 : 12,837.30 = 5,260.60 : x
  2. Step 2: Convert to fraction form
    8,558.20/12,837.30 = 5,260.60/x
  3. Step 3: Cross multiply
    8,558.20x = 12,837.30 × 5,260.60
  4. Step 4: Simplify right side
    8,558.20x = 67,531,900.38
  5. Step 5: Solve for x
    x = 67,531,900.38/8,558.20
  6. Step 6: Final answer
    x = 7,890.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.