Home / 11,058.47-15,249.01-8,221.30

Finding the Fourth Proportional to 11,058.47, 15,249.01 and 8,221.30

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Solution

The fourth proportional to 11,058.47, 15,249.01 and 8,221.30 is: 11,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,058.47 : 15,249.01 = 8,221.30 : x
  2. Step 2: Convert to fraction form
    11,058.47/15,249.01 = 8,221.30/x
  3. Step 3: Cross multiply
    11,058.47x = 15,249.01 × 8,221.30
  4. Step 4: Simplify right side
    11,058.47x = 125,366,642.65
  5. Step 5: Solve for x
    x = 125,366,642.65/11,058.47
  6. Step 6: Final answer
    x = 11,336.70

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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.