Home / 12,402.87-18,604.05-3,637.59

Finding the Fourth Proportional to 12,402.87, 18,604.05 and 3,637.59

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Solution

The fourth proportional to 12,402.87, 18,604.05 and 3,637.59 is: 5,456.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.87 : 18,604.05 = 3,637.59 : x
  2. Step 2: Convert to fraction form
    12,402.87/18,604.05 = 3,637.59/x
  3. Step 3: Cross multiply
    12,402.87x = 18,604.05 × 3,637.59
  4. Step 4: Simplify right side
    12,402.87x = 67,673,906.24
  5. Step 5: Solve for x
    x = 67,673,906.24/12,402.87
  6. Step 6: Final answer
    x = 5,456.31

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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.