Home / 11,722.17-16,172.59-6,682.75

Finding the Fourth Proportional to 11,722.17, 16,172.59 and 6,682.75

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Solution

The fourth proportional to 11,722.17, 16,172.59 and 6,682.75 is: 9,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.17 : 16,172.59 = 6,682.75 : x
  2. Step 2: Convert to fraction form
    11,722.17/16,172.59 = 6,682.75/x
  3. Step 3: Cross multiply
    11,722.17x = 16,172.59 × 6,682.75
  4. Step 4: Simplify right side
    11,722.17x = 108,077,375.82
  5. Step 5: Solve for x
    x = 108,077,375.82/11,722.17
  6. Step 6: Final answer
    x = 9,219.91

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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.