Home / 11,427.98-17,142.36-3,931.48

Finding the Fourth Proportional to 11,427.98, 17,142.36 and 3,931.48

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Solution

The fourth proportional to 11,427.98, 17,142.36 and 3,931.48 is: 5,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.98 : 17,142.36 = 3,931.48 : x
  2. Step 2: Convert to fraction form
    11,427.98/17,142.36 = 3,931.48/x
  3. Step 3: Cross multiply
    11,427.98x = 17,142.36 × 3,931.48
  4. Step 4: Simplify right side
    11,427.98x = 67,394,802.64
  5. Step 5: Solve for x
    x = 67,394,802.64/11,427.98
  6. Step 6: Final answer
    x = 5,897.35

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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.