Home / 13,943.61-20,912.34-4,083.66

Finding the Fourth Proportional to 13,943.61, 20,912.34 and 4,083.66

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Solution

The fourth proportional to 13,943.61, 20,912.34 and 4,083.66 is: 6,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.61 : 20,912.34 = 4,083.66 : x
  2. Step 2: Convert to fraction form
    13,943.61/20,912.34 = 4,083.66/x
  3. Step 3: Cross multiply
    13,943.61x = 20,912.34 × 4,083.66
  4. Step 4: Simplify right side
    13,943.61x = 85,398,901.68
  5. Step 5: Solve for x
    x = 85,398,901.68/13,943.61
  6. Step 6: Final answer
    x = 6,124.59

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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.