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Finding the Fourth Proportional to 8,991.99, 13,489.52 and 2,751.35

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Solution

The fourth proportional to 8,991.99, 13,489.52 and 2,751.35 is: 4,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.99 : 13,489.52 = 2,751.35 : x
  2. Step 2: Convert to fraction form
    8,991.99/13,489.52 = 2,751.35/x
  3. Step 3: Cross multiply
    8,991.99x = 13,489.52 × 2,751.35
  4. Step 4: Simplify right side
    8,991.99x = 37,114,366.74
  5. Step 5: Solve for x
    x = 37,114,366.74/8,991.99
  6. Step 6: Final answer
    x = 4,127.49

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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.