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Finding the Fourth Proportional to 11,340.88, 16,992.12 and 6,949.18

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Solution

The fourth proportional to 11,340.88, 16,992.12 and 6,949.18 is: 10,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.88 : 16,992.12 = 6,949.18 : x
  2. Step 2: Convert to fraction form
    11,340.88/16,992.12 = 6,949.18/x
  3. Step 3: Cross multiply
    11,340.88x = 16,992.12 × 6,949.18
  4. Step 4: Simplify right side
    11,340.88x = 118,081,300.46
  5. Step 5: Solve for x
    x = 118,081,300.46/11,340.88
  6. Step 6: Final answer
    x = 10,412.01

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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.