Home / 17,650.72-26,486.40-7,125.80

Finding the Fourth Proportional to 17,650.72, 26,486.40 and 7,125.80

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Solution

The fourth proportional to 17,650.72, 26,486.40 and 7,125.80 is: 10,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,650.72 : 26,486.40 = 7,125.80 : x
  2. Step 2: Convert to fraction form
    17,650.72/26,486.40 = 7,125.80/x
  3. Step 3: Cross multiply
    17,650.72x = 26,486.40 × 7,125.80
  4. Step 4: Simplify right side
    17,650.72x = 188,736,789.12
  5. Step 5: Solve for x
    x = 188,736,789.12/17,650.72
  6. Step 6: Final answer
    x = 10,692.87

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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.