Home / 12,891.77-19,337.66-3,531.88

Finding the Fourth Proportional to 12,891.77, 19,337.66 and 3,531.88

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Solution

The fourth proportional to 12,891.77, 19,337.66 and 3,531.88 is: 5,297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891.77 : 19,337.66 = 3,531.88 : x
  2. Step 2: Convert to fraction form
    12,891.77/19,337.66 = 3,531.88/x
  3. Step 3: Cross multiply
    12,891.77x = 19,337.66 × 3,531.88
  4. Step 4: Simplify right side
    12,891.77x = 68,298,255.09
  5. Step 5: Solve for x
    x = 68,298,255.09/12,891.77
  6. Step 6: Final answer
    x = 5,297.82

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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.