Home / 13,991.11-19,307.28-8,324.56

Finding the Fourth Proportional to 13,991.11, 19,307.28 and 8,324.56

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Solution

The fourth proportional to 13,991.11, 19,307.28 and 8,324.56 is: 11,487.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.11 : 19,307.28 = 8,324.56 : x
  2. Step 2: Convert to fraction form
    13,991.11/19,307.28 = 8,324.56/x
  3. Step 3: Cross multiply
    13,991.11x = 19,307.28 × 8,324.56
  4. Step 4: Simplify right side
    13,991.11x = 160,724,593.75
  5. Step 5: Solve for x
    x = 160,724,593.75/13,991.11
  6. Step 6: Final answer
    x = 11,487.62

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1.5x scale

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.