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Finding the Fourth Proportional to 7,902.36, 11,854.89 and 3,519.72

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Solution

The fourth proportional to 7,902.36, 11,854.89 and 3,519.72 is: 5,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.36 : 11,854.89 = 3,519.72 : x
  2. Step 2: Convert to fraction form
    7,902.36/11,854.89 = 3,519.72/x
  3. Step 3: Cross multiply
    7,902.36x = 11,854.89 × 3,519.72
  4. Step 4: Simplify right side
    7,902.36x = 41,725,893.43
  5. Step 5: Solve for x
    x = 41,725,893.43/7,902.36
  6. Step 6: Final answer
    x = 5,280.18

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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.