Home / 18,747.62-25,892.98-12,768.92

Finding the Fourth Proportional to 18,747.62, 25,892.98 and 12,768.92

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Solution

The fourth proportional to 18,747.62, 25,892.98 and 12,768.92 is: 17,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.62 : 25,892.98 = 12,768.92 : x
  2. Step 2: Convert to fraction form
    18,747.62/25,892.98 = 12,768.92/x
  3. Step 3: Cross multiply
    18,747.62x = 25,892.98 × 12,768.92
  4. Step 4: Simplify right side
    18,747.62x = 330,625,228.79
  5. Step 5: Solve for x
    x = 330,625,228.79/18,747.62
  6. Step 6: Final answer
    x = 17,635.59

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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.