Home / 12,144.47-18,219.14-3,825.77

Finding the Fourth Proportional to 12,144.47, 18,219.14 and 3,825.77

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Solution

The fourth proportional to 12,144.47, 18,219.14 and 3,825.77 is: 5,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.47 : 18,219.14 = 3,825.77 : x
  2. Step 2: Convert to fraction form
    12,144.47/18,219.14 = 3,825.77/x
  3. Step 3: Cross multiply
    12,144.47x = 18,219.14 × 3,825.77
  4. Step 4: Simplify right side
    12,144.47x = 69,702,220.11
  5. Step 5: Solve for x
    x = 69,702,220.11/12,144.47
  6. Step 6: Final answer
    x = 5,739.42

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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.