Home / 13,427.43-20,135.97-5,103.06

Finding the Fourth Proportional to 13,427.43, 20,135.97 and 5,103.06

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Solution

The fourth proportional to 13,427.43, 20,135.97 and 5,103.06 is: 7,652.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.43 : 20,135.97 = 5,103.06 : x
  2. Step 2: Convert to fraction form
    13,427.43/20,135.97 = 5,103.06/x
  3. Step 3: Cross multiply
    13,427.43x = 20,135.97 × 5,103.06
  4. Step 4: Simplify right side
    13,427.43x = 102,755,063.07
  5. Step 5: Solve for x
    x = 102,755,063.07/13,427.43
  6. Step 6: Final answer
    x = 7,652.62

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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.