Home / 13,410.30-20,115.45-11,296.20

Finding the Fourth Proportional to 13,410.30, 20,115.45 and 11,296.20

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Solution

The fourth proportional to 13,410.30, 20,115.45 and 11,296.20 is: 16,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.30 : 20,115.45 = 11,296.20 : x
  2. Step 2: Convert to fraction form
    13,410.30/20,115.45 = 11,296.20/x
  3. Step 3: Cross multiply
    13,410.30x = 20,115.45 × 11,296.20
  4. Step 4: Simplify right side
    13,410.30x = 227,228,146.29
  5. Step 5: Solve for x
    x = 227,228,146.29/13,410.30
  6. Step 6: Final answer
    x = 16,944.30

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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.