Home / 11,805.30-17,710.85-3,485.27

Finding the Fourth Proportional to 11,805.30, 17,710.85 and 3,485.27

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Solution

The fourth proportional to 11,805.30, 17,710.85 and 3,485.27 is: 5,228.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.30 : 17,710.85 = 3,485.27 : x
  2. Step 2: Convert to fraction form
    11,805.30/17,710.85 = 3,485.27/x
  3. Step 3: Cross multiply
    11,805.30x = 17,710.85 × 3,485.27
  4. Step 4: Simplify right side
    11,805.30x = 61,727,147.17
  5. Step 5: Solve for x
    x = 61,727,147.17/11,805.30
  6. Step 6: Final answer
    x = 5,228.77

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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.