Home / 13,440.60-20,160.90-11,496.60

Finding the Fourth Proportional to 13,440.60, 20,160.90 and 11,496.60

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Solution

The fourth proportional to 13,440.60, 20,160.90 and 11,496.60 is: 17,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.60 : 20,160.90 = 11,496.60 : x
  2. Step 2: Convert to fraction form
    13,440.60/20,160.90 = 11,496.60/x
  3. Step 3: Cross multiply
    13,440.60x = 20,160.90 × 11,496.60
  4. Step 4: Simplify right side
    13,440.60x = 231,781,802.94
  5. Step 5: Solve for x
    x = 231,781,802.94/13,440.60
  6. Step 6: Final answer
    x = 17,244.90

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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.