Home / 19,691.72-29,516.84-6,540.56

Finding the Fourth Proportional to 19,691.72, 29,516.84 and 6,540.56

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Solution

The fourth proportional to 19,691.72, 29,516.84 and 6,540.56 is: 9,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.72 : 29,516.84 = 6,540.56 : x
  2. Step 2: Convert to fraction form
    19,691.72/29,516.84 = 6,540.56/x
  3. Step 3: Cross multiply
    19,691.72x = 29,516.84 × 6,540.56
  4. Step 4: Simplify right side
    19,691.72x = 193,056,663.03
  5. Step 5: Solve for x
    x = 193,056,663.03/19,691.72
  6. Step 6: Final answer
    x = 9,803.95

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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.