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Finding the Fourth Proportional to 13,218.39, 19,827.99 and 8,844.39

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Solution

The fourth proportional to 13,218.39, 19,827.99 and 8,844.39 is: 13,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.39 : 19,827.99 = 8,844.39 : x
  2. Step 2: Convert to fraction form
    13,218.39/19,827.99 = 8,844.39/x
  3. Step 3: Cross multiply
    13,218.39x = 19,827.99 × 8,844.39
  4. Step 4: Simplify right side
    13,218.39x = 175,366,476.48
  5. Step 5: Solve for x
    x = 175,366,476.48/13,218.39
  6. Step 6: Final answer
    x = 13,266.86

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1.5x scale

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.