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Finding the Fourth Proportional to 19,616.94, 29,404.76 and 6,465.78

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Solution

The fourth proportional to 19,616.94, 29,404.76 and 6,465.78 is: 9,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.94 : 29,404.76 = 6,465.78 : x
  2. Step 2: Convert to fraction form
    19,616.94/29,404.76 = 6,465.78/x
  3. Step 3: Cross multiply
    19,616.94x = 29,404.76 × 6,465.78
  4. Step 4: Simplify right side
    19,616.94x = 190,124,676.78
  5. Step 5: Solve for x
    x = 190,124,676.78/19,616.94
  6. Step 6: Final answer
    x = 9,691.86

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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.