Home / 11,008.98-15,194.39-7,185.38

Finding the Fourth Proportional to 11,008.98, 15,194.39 and 7,185.38

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Solution

The fourth proportional to 11,008.98, 15,194.39 and 7,185.38 is: 9,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.98 : 15,194.39 = 7,185.38 : x
  2. Step 2: Convert to fraction form
    11,008.98/15,194.39 = 7,185.38/x
  3. Step 3: Cross multiply
    11,008.98x = 15,194.39 × 7,185.38
  4. Step 4: Simplify right side
    11,008.98x = 109,177,354.12
  5. Step 5: Solve for x
    x = 109,177,354.12/11,008.98
  6. Step 6: Final answer
    x = 9,917.12

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Double 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.