Home / 13,429.20-20,147.82-4,664.16

Finding the Fourth Proportional to 13,429.20, 20,147.82 and 4,664.16

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Solution

The fourth proportional to 13,429.20, 20,147.82 and 4,664.16 is: 6,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.20 : 20,147.82 = 4,664.16 : x
  2. Step 2: Convert to fraction form
    13,429.20/20,147.82 = 4,664.16/x
  3. Step 3: Cross multiply
    13,429.20x = 20,147.82 × 4,664.16
  4. Step 4: Simplify right side
    13,429.20x = 93,972,656.13
  5. Step 5: Solve for x
    x = 93,972,656.13/13,429.20
  6. Step 6: Final answer
    x = 6,997.64

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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.