Home / 11,682.53-16,121.33-6,646.28

Finding the Fourth Proportional to 11,682.53, 16,121.33 and 6,646.28

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Solution

The fourth proportional to 11,682.53, 16,121.33 and 6,646.28 is: 9,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.53 : 16,121.33 = 6,646.28 : x
  2. Step 2: Convert to fraction form
    11,682.53/16,121.33 = 6,646.28/x
  3. Step 3: Cross multiply
    11,682.53x = 16,121.33 × 6,646.28
  4. Step 4: Simplify right side
    11,682.53x = 107,146,930.07
  5. Step 5: Solve for x
    x = 107,146,930.07/11,682.53
  6. Step 6: Final answer
    x = 9,171.55

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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.