Home / 8,260.20-12,390.30-2,712.22

Finding the Fourth Proportional to 8,260.20, 12,390.30 and 2,712.22

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Solution

The fourth proportional to 8,260.20, 12,390.30 and 2,712.22 is: 4,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.20 : 12,390.30 = 2,712.22 : x
  2. Step 2: Convert to fraction form
    8,260.20/12,390.30 = 2,712.22/x
  3. Step 3: Cross multiply
    8,260.20x = 12,390.30 × 2,712.22
  4. Step 4: Simplify right side
    8,260.20x = 33,605,188.49
  5. Step 5: Solve for x
    x = 33,605,188.49/8,260.20
  6. Step 6: Final answer
    x = 4,068.33

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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.