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Finding the Fourth Proportional to 13,760.16, 20,640.01 and 4,400.07

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Solution

The fourth proportional to 13,760.16, 20,640.01 and 4,400.07 is: 6,600.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.16 : 20,640.01 = 4,400.07 : x
  2. Step 2: Convert to fraction form
    13,760.16/20,640.01 = 4,400.07/x
  3. Step 3: Cross multiply
    13,760.16x = 20,640.01 × 4,400.07
  4. Step 4: Simplify right side
    13,760.16x = 90,817,488.80
  5. Step 5: Solve for x
    x = 90,817,488.80/13,760.16
  6. Step 6: Final answer
    x = 6,600.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.