Home / 12,403.12-18,604.44-3,637.84

Finding the Fourth Proportional to 12,403.12, 18,604.44 and 3,637.84

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Solution

The fourth proportional to 12,403.12, 18,604.44 and 3,637.84 is: 5,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.12 : 18,604.44 = 3,637.84 : x
  2. Step 2: Convert to fraction form
    12,403.12/18,604.44 = 3,637.84/x
  3. Step 3: Cross multiply
    12,403.12x = 18,604.44 × 3,637.84
  4. Step 4: Simplify right side
    12,403.12x = 67,679,976.01
  5. Step 5: Solve for x
    x = 67,679,976.01/12,403.12
  6. Step 6: Final answer
    x = 5,456.69

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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.