Home / 11,455.74-17,186.32-3,557.86

Finding the Fourth Proportional to 11,455.74, 17,186.32 and 3,557.86

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Solution

The fourth proportional to 11,455.74, 17,186.32 and 3,557.86 is: 5,337.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.74 : 17,186.32 = 3,557.86 : x
  2. Step 2: Convert to fraction form
    11,455.74/17,186.32 = 3,557.86/x
  3. Step 3: Cross multiply
    11,455.74x = 17,186.32 × 3,557.86
  4. Step 4: Simplify right side
    11,455.74x = 61,146,520.48
  5. Step 5: Solve for x
    x = 61,146,520.48/11,455.74
  6. Step 6: Final answer
    x = 5,337.63

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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.