Home / 8,260.49-12,390.62-2,020.55

Finding the Fourth Proportional to 8,260.49, 12,390.62 and 2,020.55

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Solution

The fourth proportional to 8,260.49, 12,390.62 and 2,020.55 is: 3,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.49 : 12,390.62 = 2,020.55 : x
  2. Step 2: Convert to fraction form
    8,260.49/12,390.62 = 2,020.55/x
  3. Step 3: Cross multiply
    8,260.49x = 12,390.62 × 2,020.55
  4. Step 4: Simplify right side
    8,260.49x = 25,035,867.24
  5. Step 5: Solve for x
    x = 25,035,867.24/8,260.49
  6. Step 6: Final answer
    x = 3,030.80

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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.