Home / 17,765.20-26,604.60-13,358.80

Finding the Fourth Proportional to 17,765.20, 26,604.60 and 13,358.80

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Solution

The fourth proportional to 17,765.20, 26,604.60 and 13,358.80 is: 20,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.20 : 26,604.60 = 13,358.80 : x
  2. Step 2: Convert to fraction form
    17,765.20/26,604.60 = 13,358.80/x
  3. Step 3: Cross multiply
    17,765.20x = 26,604.60 × 13,358.80
  4. Step 4: Simplify right side
    17,765.20x = 355,405,530.48
  5. Step 5: Solve for x
    x = 355,405,530.48/17,765.20
  6. Step 6: Final answer
    x = 20,005.72

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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.