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Finding the Fourth Proportional to 11,902.80, 17,854.20 and 3,582.48

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Solution

The fourth proportional to 11,902.80, 17,854.20 and 3,582.48 is: 5,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.80 : 17,854.20 = 3,582.48 : x
  2. Step 2: Convert to fraction form
    11,902.80/17,854.20 = 3,582.48/x
  3. Step 3: Cross multiply
    11,902.80x = 17,854.20 × 3,582.48
  4. Step 4: Simplify right side
    11,902.80x = 63,962,314.42
  5. Step 5: Solve for x
    x = 63,962,314.42/11,902.80
  6. Step 6: Final answer
    x = 5,373.72

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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.