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Finding the Fourth Proportional to 13,366, 18,445.12 and 8,061.04

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Solution

The fourth proportional to 13,366, 18,445.12 and 8,061.04 is: 11,124.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366 : 18,445.12 = 8,061.04 : x
  2. Step 2: Convert to fraction form
    13,366/18,445.12 = 8,061.04/x
  3. Step 3: Cross multiply
    13,366x = 18,445.12 × 8,061.04
  4. Step 4: Simplify right side
    13,366x = 148,686,850.12
  5. Step 5: Solve for x
    x = 148,686,850.12/13,366
  6. Step 6: Final answer
    x = 11,124.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.