Home / 11,427.72-17,140.32-3,637.14

Finding the Fourth Proportional to 11,427.72, 17,140.32 and 3,637.14

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Solution

The fourth proportional to 11,427.72, 17,140.32 and 3,637.14 is: 5,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.72 : 17,140.32 = 3,637.14 : x
  2. Step 2: Convert to fraction form
    11,427.72/17,140.32 = 3,637.14/x
  3. Step 3: Cross multiply
    11,427.72x = 17,140.32 × 3,637.14
  4. Step 4: Simplify right side
    11,427.72x = 62,341,743.48
  5. Step 5: Solve for x
    x = 62,341,743.48/11,427.72
  6. Step 6: Final answer
    x = 5,455.31

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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.