Home / 13,747.11-18,971.07-7,459.53

Finding the Fourth Proportional to 13,747.11, 18,971.07 and 7,459.53

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Solution

The fourth proportional to 13,747.11, 18,971.07 and 7,459.53 is: 10,294.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.11 : 18,971.07 = 7,459.53 : x
  2. Step 2: Convert to fraction form
    13,747.11/18,971.07 = 7,459.53/x
  3. Step 3: Cross multiply
    13,747.11x = 18,971.07 × 7,459.53
  4. Step 4: Simplify right side
    13,747.11x = 141,515,265.80
  5. Step 5: Solve for x
    x = 141,515,265.80/13,747.11
  6. Step 6: Final answer
    x = 10,294.18

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