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Finding the Fourth Proportional to 8,987.14, 13,484.41 and 3,723.21

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Solution

The fourth proportional to 8,987.14, 13,484.41 and 3,723.21 is: 5,586.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.14 : 13,484.41 = 3,723.21 : x
  2. Step 2: Convert to fraction form
    8,987.14/13,484.41 = 3,723.21/x
  3. Step 3: Cross multiply
    8,987.14x = 13,484.41 × 3,723.21
  4. Step 4: Simplify right side
    8,987.14x = 50,205,204.12
  5. Step 5: Solve for x
    x = 50,205,204.12/8,987.14
  6. Step 6: Final answer
    x = 5,586.34

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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.