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Finding the Fourth Proportional to 11,414.80, 17,111.40 and 6,738.40

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Solution

The fourth proportional to 11,414.80, 17,111.40 and 6,738.40 is: 10,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,414.80 : 17,111.40 = 6,738.40 : x
  2. Step 2: Convert to fraction form
    11,414.80/17,111.40 = 6,738.40/x
  3. Step 3: Cross multiply
    11,414.80x = 17,111.40 × 6,738.40
  4. Step 4: Simplify right side
    11,414.80x = 115,303,457.76
  5. Step 5: Solve for x
    x = 115,303,457.76/11,414.80
  6. Step 6: Final answer
    x = 10,101.22

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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.