Home / 8,020.77-12,031.67-3,090.43

Finding the Fourth Proportional to 8,020.77, 12,031.67 and 3,090.43

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Solution

The fourth proportional to 8,020.77, 12,031.67 and 3,090.43 is: 4,635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.77 : 12,031.67 = 3,090.43 : x
  2. Step 2: Convert to fraction form
    8,020.77/12,031.67 = 3,090.43/x
  3. Step 3: Cross multiply
    8,020.77x = 12,031.67 × 3,090.43
  4. Step 4: Simplify right side
    8,020.77x = 37,183,033.92
  5. Step 5: Solve for x
    x = 37,183,033.92/8,020.77
  6. Step 6: Final answer
    x = 4,635.84

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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.