Home / 13,560.25-20,334.49-7,943.94

Finding the Fourth Proportional to 13,560.25, 20,334.49 and 7,943.94

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Solution

The fourth proportional to 13,560.25, 20,334.49 and 7,943.94 is: 11,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.25 : 20,334.49 = 7,943.94 : x
  2. Step 2: Convert to fraction form
    13,560.25/20,334.49 = 7,943.94/x
  3. Step 3: Cross multiply
    13,560.25x = 20,334.49 × 7,943.94
  4. Step 4: Simplify right side
    13,560.25x = 161,535,857.26
  5. Step 5: Solve for x
    x = 161,535,857.26/13,560.25
  6. Step 6: Final answer
    x = 11,912.45

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1.5x scale

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.