Home / 12,100.36-16,694.20-7,911.04

Finding the Fourth Proportional to 12,100.36, 16,694.20 and 7,911.04

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Solution

The fourth proportional to 12,100.36, 16,694.20 and 7,911.04 is: 10,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.36 : 16,694.20 = 7,911.04 : x
  2. Step 2: Convert to fraction form
    12,100.36/16,694.20 = 7,911.04/x
  3. Step 3: Cross multiply
    12,100.36x = 16,694.20 × 7,911.04
  4. Step 4: Simplify right side
    12,100.36x = 132,068,483.97
  5. Step 5: Solve for x
    x = 132,068,483.97/12,100.36
  6. Step 6: Final answer
    x = 10,914.43

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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.