Home / 11,255.91-15,534.08-6,221.11

Finding the Fourth Proportional to 11,255.91, 15,534.08 and 6,221.11

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Solution

The fourth proportional to 11,255.91, 15,534.08 and 6,221.11 is: 8,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.91 : 15,534.08 = 6,221.11 : x
  2. Step 2: Convert to fraction form
    11,255.91/15,534.08 = 6,221.11/x
  3. Step 3: Cross multiply
    11,255.91x = 15,534.08 × 6,221.11
  4. Step 4: Simplify right side
    11,255.91x = 96,639,197.15
  5. Step 5: Solve for x
    x = 96,639,197.15/11,255.91
  6. Step 6: Final answer
    x = 8,585.64

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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.