Home / 11,724.80-17,590.30-3,405.59

Finding the Fourth Proportional to 11,724.80, 17,590.30 and 3,405.59

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Solution

The fourth proportional to 11,724.80, 17,590.30 and 3,405.59 is: 5,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.80 : 17,590.30 = 3,405.59 : x
  2. Step 2: Convert to fraction form
    11,724.80/17,590.30 = 3,405.59/x
  3. Step 3: Cross multiply
    11,724.80x = 17,590.30 × 3,405.59
  4. Step 4: Simplify right side
    11,724.80x = 59,905,319.28
  5. Step 5: Solve for x
    x = 59,905,319.28/11,724.80
  6. Step 6: Final answer
    x = 5,109.29

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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.