Home / 12,403.41-17,116.82-6,738.20

Finding the Fourth Proportional to 12,403.41, 17,116.82 and 6,738.20

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Solution

The fourth proportional to 12,403.41, 17,116.82 and 6,738.20 is: 9,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.41 : 17,116.82 = 6,738.20 : x
  2. Step 2: Convert to fraction form
    12,403.41/17,116.82 = 6,738.20/x
  3. Step 3: Cross multiply
    12,403.41x = 17,116.82 × 6,738.20
  4. Step 4: Simplify right side
    12,403.41x = 115,336,579.20
  5. Step 5: Solve for x
    x = 115,336,579.20/12,403.41
  6. Step 6: Final answer
    x = 9,298.78

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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.