Home / 11,682.04-16,121.28-7,204.72

Finding the Fourth Proportional to 11,682.04, 16,121.28 and 7,204.72

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Solution

The fourth proportional to 11,682.04, 16,121.28 and 7,204.72 is: 9,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.04 : 16,121.28 = 7,204.72 : x
  2. Step 2: Convert to fraction form
    11,682.04/16,121.28 = 7,204.72/x
  3. Step 3: Cross multiply
    11,682.04x = 16,121.28 × 7,204.72
  4. Step 4: Simplify right side
    11,682.04x = 116,149,308.44
  5. Step 5: Solve for x
    x = 116,149,308.44/11,682.04
  6. Step 6: Final answer
    x = 9,942.55

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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.