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Finding the Fourth Proportional to 8,991.01, 13,477.81 and 3,440.08

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Solution

The fourth proportional to 8,991.01, 13,477.81 and 3,440.08 is: 5,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.01 : 13,477.81 = 3,440.08 : x
  2. Step 2: Convert to fraction form
    8,991.01/13,477.81 = 3,440.08/x
  3. Step 3: Cross multiply
    8,991.01x = 13,477.81 × 3,440.08
  4. Step 4: Simplify right side
    8,991.01x = 46,364,744.62
  5. Step 5: Solve for x
    x = 46,364,744.62/8,991.01
  6. Step 6: Final answer
    x = 5,156.79

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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.