Home / 11,227.20-15,485.16-8,242.08

Finding the Fourth Proportional to 11,227.20, 15,485.16 and 8,242.08

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Solution

The fourth proportional to 11,227.20, 15,485.16 and 8,242.08 is: 11,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.20 : 15,485.16 = 8,242.08 : x
  2. Step 2: Convert to fraction form
    11,227.20/15,485.16 = 8,242.08/x
  3. Step 3: Cross multiply
    11,227.20x = 15,485.16 × 8,242.08
  4. Step 4: Simplify right side
    11,227.20x = 127,629,927.53
  5. Step 5: Solve for x
    x = 127,629,927.53/11,227.20
  6. Step 6: Final answer
    x = 11,367.92

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Half scale
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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.