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Finding the Fourth Proportional to 13,811.17, 19,058.52 and 8,144.62

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Solution

The fourth proportional to 13,811.17, 19,058.52 and 8,144.62 is: 11,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.17 : 19,058.52 = 8,144.62 : x
  2. Step 2: Convert to fraction form
    13,811.17/19,058.52 = 8,144.62/x
  3. Step 3: Cross multiply
    13,811.17x = 19,058.52 × 8,144.62
  4. Step 4: Simplify right side
    13,811.17x = 155,224,396.44
  5. Step 5: Solve for x
    x = 155,224,396.44/13,811.17
  6. Step 6: Final answer
    x = 11,239.05

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1.5x scale

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.