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Finding the Fourth Proportional to 13,804.96, 20,703.95 and 3,944.29

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Solution

The fourth proportional to 13,804.96, 20,703.95 and 3,944.29 is: 5,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,804.96 : 20,703.95 = 3,944.29 : x
  2. Step 2: Convert to fraction form
    13,804.96/20,703.95 = 3,944.29/x
  3. Step 3: Cross multiply
    13,804.96x = 20,703.95 × 3,944.29
  4. Step 4: Simplify right side
    13,804.96x = 81,662,279.43
  5. Step 5: Solve for x
    x = 81,662,279.43/13,804.96
  6. Step 6: Final answer
    x = 5,915.43

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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.