Home / 12,080.21-18,122.03-3,761.07

Finding the Fourth Proportional to 12,080.21, 18,122.03 and 3,761.07

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Solution

The fourth proportional to 12,080.21, 18,122.03 and 3,761.07 is: 5,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.21 : 18,122.03 = 3,761.07 : x
  2. Step 2: Convert to fraction form
    12,080.21/18,122.03 = 3,761.07/x
  3. Step 3: Cross multiply
    12,080.21x = 18,122.03 × 3,761.07
  4. Step 4: Simplify right side
    12,080.21x = 68,158,113.96
  5. Step 5: Solve for x
    x = 68,158,113.96/12,080.21
  6. Step 6: Final answer
    x = 5,642.13

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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.