Home / 13,824.48-20,745.32-5,616.48

Finding the Fourth Proportional to 13,824.48, 20,745.32 and 5,616.48

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Solution

The fourth proportional to 13,824.48, 20,745.32 and 5,616.48 is: 8,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.48 : 20,745.32 = 5,616.48 : x
  2. Step 2: Convert to fraction form
    13,824.48/20,745.32 = 5,616.48/x
  3. Step 3: Cross multiply
    13,824.48x = 20,745.32 × 5,616.48
  4. Step 4: Simplify right side
    13,824.48x = 116,515,674.87
  5. Step 5: Solve for x
    x = 116,515,674.87/13,824.48
  6. Step 6: Final answer
    x = 8,428.21

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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.