Home / 11,874.40-17,810.08-3,109.28

Finding the Fourth Proportional to 11,874.40, 17,810.08 and 3,109.28

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Solution

The fourth proportional to 11,874.40, 17,810.08 and 3,109.28 is: 4,663.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.40 : 17,810.08 = 3,109.28 : x
  2. Step 2: Convert to fraction form
    11,874.40/17,810.08 = 3,109.28/x
  3. Step 3: Cross multiply
    11,874.40x = 17,810.08 × 3,109.28
  4. Step 4: Simplify right side
    11,874.40x = 55,376,525.54
  5. Step 5: Solve for x
    x = 55,376,525.54/11,874.40
  6. Step 6: Final answer
    x = 4,663.52

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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.