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Finding the Fourth Proportional to 8,536.62, 12,808.23 and 2,990.58

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Solution

The fourth proportional to 8,536.62, 12,808.23 and 2,990.58 is: 4,487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536.62 : 12,808.23 = 2,990.58 : x
  2. Step 2: Convert to fraction form
    8,536.62/12,808.23 = 2,990.58/x
  3. Step 3: Cross multiply
    8,536.62x = 12,808.23 × 2,990.58
  4. Step 4: Simplify right side
    8,536.62x = 38,304,036.47
  5. Step 5: Solve for x
    x = 38,304,036.47/8,536.62
  6. Step 6: Final answer
    x = 4,487.03

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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.