Home / 8,579.99-12,870.21-2,736.60

Finding the Fourth Proportional to 8,579.99, 12,870.21 and 2,736.60

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Solution

The fourth proportional to 8,579.99, 12,870.21 and 2,736.60 is: 4,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.99 : 12,870.21 = 2,736.60 : x
  2. Step 2: Convert to fraction form
    8,579.99/12,870.21 = 2,736.60/x
  3. Step 3: Cross multiply
    8,579.99x = 12,870.21 × 2,736.60
  4. Step 4: Simplify right side
    8,579.99x = 35,220,587.16
  5. Step 5: Solve for x
    x = 35,220,587.16/8,579.99
  6. Step 6: Final answer
    x = 4,104.97

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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.