Home / 11,455.75-17,186.31-3,557.86

Finding the Fourth Proportional to 11,455.75, 17,186.31 and 3,557.86

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Solution

The fourth proportional to 11,455.75, 17,186.31 and 3,557.86 is: 5,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.75 : 17,186.31 = 3,557.86 : x
  2. Step 2: Convert to fraction form
    11,455.75/17,186.31 = 3,557.86/x
  3. Step 3: Cross multiply
    11,455.75x = 17,186.31 × 3,557.86
  4. Step 4: Simplify right side
    11,455.75x = 61,146,484.90
  5. Step 5: Solve for x
    x = 61,146,484.90/11,455.75
  6. Step 6: Final answer
    x = 5,337.62

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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.