Home / 18,270.21-25,187.95-13,666.73

Finding the Fourth Proportional to 18,270.21, 25,187.95 and 13,666.73

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Solution

The fourth proportional to 18,270.21, 25,187.95 and 13,666.73 is: 18,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.21 : 25,187.95 = 13,666.73 : x
  2. Step 2: Convert to fraction form
    18,270.21/25,187.95 = 13,666.73/x
  3. Step 3: Cross multiply
    18,270.21x = 25,187.95 × 13,666.73
  4. Step 4: Simplify right side
    18,270.21x = 344,236,726.17
  5. Step 5: Solve for x
    x = 344,236,726.17/18,270.21
  6. Step 6: Final answer
    x = 18,841.42

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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.