Home / 12,351.88-18,531.06-3,587.44

Finding the Fourth Proportional to 12,351.88, 18,531.06 and 3,587.44

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Solution

The fourth proportional to 12,351.88, 18,531.06 and 3,587.44 is: 5,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.88 : 18,531.06 = 3,587.44 : x
  2. Step 2: Convert to fraction form
    12,351.88/18,531.06 = 3,587.44/x
  3. Step 3: Cross multiply
    12,351.88x = 18,531.06 × 3,587.44
  4. Step 4: Simplify right side
    12,351.88x = 66,479,065.89
  5. Step 5: Solve for x
    x = 66,479,065.89/12,351.88
  6. Step 6: Final answer
    x = 5,382.10

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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.