Home / 13,162.56-18,168.48-12,724.80

Finding the Fourth Proportional to 13,162.56, 18,168.48 and 12,724.80

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Solution

The fourth proportional to 13,162.56, 18,168.48 and 12,724.80 is: 17,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.56 : 18,168.48 = 12,724.80 : x
  2. Step 2: Convert to fraction form
    13,162.56/18,168.48 = 12,724.80/x
  3. Step 3: Cross multiply
    13,162.56x = 18,168.48 × 12,724.80
  4. Step 4: Simplify right side
    13,162.56x = 231,190,274.30
  5. Step 5: Solve for x
    x = 231,190,274.30/13,162.56
  6. Step 6: Final answer
    x = 17,564.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.