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Finding the Fourth Proportional to 18,502.97, 25,537.12 and 13,754.45

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Solution

The fourth proportional to 18,502.97, 25,537.12 and 13,754.45 is: 18,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.97 : 25,537.12 = 13,754.45 : x
  2. Step 2: Convert to fraction form
    18,502.97/25,537.12 = 13,754.45/x
  3. Step 3: Cross multiply
    18,502.97x = 25,537.12 × 13,754.45
  4. Step 4: Simplify right side
    18,502.97x = 351,249,040.18
  5. Step 5: Solve for x
    x = 351,249,040.18/18,502.97
  6. Step 6: Final answer
    x = 18,983.39

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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.