Home / 13,416.90-20,128.19-4,057.62

Finding the Fourth Proportional to 13,416.90, 20,128.19 and 4,057.62

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Solution

The fourth proportional to 13,416.90, 20,128.19 and 4,057.62 is: 6,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.90 : 20,128.19 = 4,057.62 : x
  2. Step 2: Convert to fraction form
    13,416.90/20,128.19 = 4,057.62/x
  3. Step 3: Cross multiply
    13,416.90x = 20,128.19 × 4,057.62
  4. Step 4: Simplify right side
    13,416.90x = 81,672,546.31
  5. Step 5: Solve for x
    x = 81,672,546.31/13,416.90
  6. Step 6: Final answer
    x = 6,087.29

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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.