Home / 13,938.90-19,236.33-7,969.02

Finding the Fourth Proportional to 13,938.90, 19,236.33 and 7,969.02

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Solution

The fourth proportional to 13,938.90, 19,236.33 and 7,969.02 is: 10,997.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.90 : 19,236.33 = 7,969.02 : x
  2. Step 2: Convert to fraction form
    13,938.90/19,236.33 = 7,969.02/x
  3. Step 3: Cross multiply
    13,938.90x = 19,236.33 × 7,969.02
  4. Step 4: Simplify right side
    13,938.90x = 153,294,698.50
  5. Step 5: Solve for x
    x = 153,294,698.50/13,938.90
  6. Step 6: Final answer
    x = 10,997.62

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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.