Home / 17,720.20-26,581.26-6,629.80

Finding the Fourth Proportional to 17,720.20, 26,581.26 and 6,629.80

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Solution

The fourth proportional to 17,720.20, 26,581.26 and 6,629.80 is: 9,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.20 : 26,581.26 = 6,629.80 : x
  2. Step 2: Convert to fraction form
    17,720.20/26,581.26 = 6,629.80/x
  3. Step 3: Cross multiply
    17,720.20x = 26,581.26 × 6,629.80
  4. Step 4: Simplify right side
    17,720.20x = 176,228,437.55
  5. Step 5: Solve for x
    x = 176,228,437.55/17,720.20
  6. Step 6: Final answer
    x = 9,945.06

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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.