Home / 11,942.35-17,887.20-7,485.51

Finding the Fourth Proportional to 11,942.35, 17,887.20 and 7,485.51

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Solution

The fourth proportional to 11,942.35, 17,887.20 and 7,485.51 is: 11,211.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.35 : 17,887.20 = 7,485.51 : x
  2. Step 2: Convert to fraction form
    11,942.35/17,887.20 = 7,485.51/x
  3. Step 3: Cross multiply
    11,942.35x = 17,887.20 × 7,485.51
  4. Step 4: Simplify right side
    11,942.35x = 133,894,814.47
  5. Step 5: Solve for x
    x = 133,894,814.47/11,942.35
  6. Step 6: Final answer
    x = 11,211.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.