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Finding the Fourth Proportional to 13,843.21, 20,750.23 and 6,903.13

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Solution

The fourth proportional to 13,843.21, 20,750.23 and 6,903.13 is: 10,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.21 : 20,750.23 = 6,903.13 : x
  2. Step 2: Convert to fraction form
    13,843.21/20,750.23 = 6,903.13/x
  3. Step 3: Cross multiply
    13,843.21x = 20,750.23 × 6,903.13
  4. Step 4: Simplify right side
    13,843.21x = 143,241,535.22
  5. Step 5: Solve for x
    x = 143,241,535.22/13,843.21
  6. Step 6: Final answer
    x = 10,347.42

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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.