Home / 13,961.29-20,941.89-5,641.21

Finding the Fourth Proportional to 13,961.29, 20,941.89 and 5,641.21

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Solution

The fourth proportional to 13,961.29, 20,941.89 and 5,641.21 is: 8,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.29 : 20,941.89 = 5,641.21 : x
  2. Step 2: Convert to fraction form
    13,961.29/20,941.89 = 5,641.21/x
  3. Step 3: Cross multiply
    13,961.29x = 20,941.89 × 5,641.21
  4. Step 4: Simplify right side
    13,961.29x = 118,137,546.93
  5. Step 5: Solve for x
    x = 118,137,546.93/13,961.29
  6. Step 6: Final answer
    x = 8,461.79

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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.