Home / 13,747.43-18,971.42-7,459.80

Finding the Fourth Proportional to 13,747.43, 18,971.42 and 7,459.80

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Solution

The fourth proportional to 13,747.43, 18,971.42 and 7,459.80 is: 10,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.43 : 18,971.42 = 7,459.80 : x
  2. Step 2: Convert to fraction form
    13,747.43/18,971.42 = 7,459.80/x
  3. Step 3: Cross multiply
    13,747.43x = 18,971.42 × 7,459.80
  4. Step 4: Simplify right side
    13,747.43x = 141,522,961.62
  5. Step 5: Solve for x
    x = 141,522,961.62/13,747.43
  6. Step 6: Final answer
    x = 10,294.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.