Home / 12,556.96-17,327.83-6,890.56

Finding the Fourth Proportional to 12,556.96, 17,327.83 and 6,890.56

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Solution

The fourth proportional to 12,556.96, 17,327.83 and 6,890.56 is: 9,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.96 : 17,327.83 = 6,890.56 : x
  2. Step 2: Convert to fraction form
    12,556.96/17,327.83 = 6,890.56/x
  3. Step 3: Cross multiply
    12,556.96x = 17,327.83 × 6,890.56
  4. Step 4: Simplify right side
    12,556.96x = 119,398,452.28
  5. Step 5: Solve for x
    x = 119,398,452.28/12,556.96
  6. Step 6: Final answer
    x = 9,508.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.