Home / 13,608.44-20,420.54-5,710.25

Finding the Fourth Proportional to 13,608.44, 20,420.54 and 5,710.25

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Solution

The fourth proportional to 13,608.44, 20,420.54 and 5,710.25 is: 8,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.44 : 20,420.54 = 5,710.25 : x
  2. Step 2: Convert to fraction form
    13,608.44/20,420.54 = 5,710.25/x
  3. Step 3: Cross multiply
    13,608.44x = 20,420.54 × 5,710.25
  4. Step 4: Simplify right side
    13,608.44x = 116,606,388.54
  5. Step 5: Solve for x
    x = 116,606,388.54/13,608.44
  6. Step 6: Final answer
    x = 8,568.68

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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.