Home / 12,734.42-17,591.21-12,111.64

Finding the Fourth Proportional to 12,734.42, 17,591.21 and 12,111.64

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Solution

The fourth proportional to 12,734.42, 17,591.21 and 12,111.64 is: 16,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.42 : 17,591.21 = 12,111.64 : x
  2. Step 2: Convert to fraction form
    12,734.42/17,591.21 = 12,111.64/x
  3. Step 3: Cross multiply
    12,734.42x = 17,591.21 × 12,111.64
  4. Step 4: Simplify right side
    12,734.42x = 213,058,388.99
  5. Step 5: Solve for x
    x = 213,058,388.99/12,734.42
  6. Step 6: Final answer
    x = 16,730.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.