Home / 11,505.30-15,905.62-11,400.04

Finding the Fourth Proportional to 11,505.30, 15,905.62 and 11,400.04

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Solution

The fourth proportional to 11,505.30, 15,905.62 and 11,400.04 is: 15,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.30 : 15,905.62 = 11,400.04 : x
  2. Step 2: Convert to fraction form
    11,505.30/15,905.62 = 11,400.04/x
  3. Step 3: Cross multiply
    11,505.30x = 15,905.62 × 11,400.04
  4. Step 4: Simplify right side
    11,505.30x = 181,324,704.22
  5. Step 5: Solve for x
    x = 181,324,704.22/11,505.30
  6. Step 6: Final answer
    x = 15,760.10

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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.