Home / 11,255.52-15,523.20-8,234.40

Finding the Fourth Proportional to 11,255.52, 15,523.20 and 8,234.40

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Solution

The fourth proportional to 11,255.52, 15,523.20 and 8,234.40 is: 11,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.52 : 15,523.20 = 8,234.40 : x
  2. Step 2: Convert to fraction form
    11,255.52/15,523.20 = 8,234.40/x
  3. Step 3: Cross multiply
    11,255.52x = 15,523.20 × 8,234.40
  4. Step 4: Simplify right side
    11,255.52x = 127,824,238.08
  5. Step 5: Solve for x
    x = 127,824,238.08/11,255.52
  6. Step 6: Final answer
    x = 11,356.58

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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.