Home / 11,058.96-15,234.56-8,221.43

Finding the Fourth Proportional to 11,058.96, 15,234.56 and 8,221.43

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Solution

The fourth proportional to 11,058.96, 15,234.56 and 8,221.43 is: 11,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,058.96 : 15,234.56 = 8,221.43 : x
  2. Step 2: Convert to fraction form
    11,058.96/15,234.56 = 8,221.43/x
  3. Step 3: Cross multiply
    11,058.96x = 15,234.56 × 8,221.43
  4. Step 4: Simplify right side
    11,058.96x = 125,249,896.43
  5. Step 5: Solve for x
    x = 125,249,896.43/11,058.96
  6. Step 6: Final answer
    x = 11,325.64

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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.