Home / 13,943.90-20,916.44-4,083.18

Finding the Fourth Proportional to 13,943.90, 20,916.44 and 4,083.18

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Solution

The fourth proportional to 13,943.90, 20,916.44 and 4,083.18 is: 6,124.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.90 : 20,916.44 = 4,083.18 : x
  2. Step 2: Convert to fraction form
    13,943.90/20,916.44 = 4,083.18/x
  3. Step 3: Cross multiply
    13,943.90x = 20,916.44 × 4,083.18
  4. Step 4: Simplify right side
    13,943.90x = 85,405,569.06
  5. Step 5: Solve for x
    x = 85,405,569.06/13,943.90
  6. Step 6: Final answer
    x = 6,124.94

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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.