Home / 12,359.78-18,541.50-3,593.56

Finding the Fourth Proportional to 12,359.78, 18,541.50 and 3,593.56

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Solution

The fourth proportional to 12,359.78, 18,541.50 and 3,593.56 is: 5,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.78 : 18,541.50 = 3,593.56 : x
  2. Step 2: Convert to fraction form
    12,359.78/18,541.50 = 3,593.56/x
  3. Step 3: Cross multiply
    12,359.78x = 18,541.50 × 3,593.56
  4. Step 4: Simplify right side
    12,359.78x = 66,629,992.74
  5. Step 5: Solve for x
    x = 66,629,992.74/12,359.78
  6. Step 6: Final answer
    x = 5,390.87

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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.