Home / 13,331.06-18,396.88-7,362.75

Finding the Fourth Proportional to 13,331.06, 18,396.88 and 7,362.75

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Solution

The fourth proportional to 13,331.06, 18,396.88 and 7,362.75 is: 10,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.06 : 18,396.88 = 7,362.75 : x
  2. Step 2: Convert to fraction form
    13,331.06/18,396.88 = 7,362.75/x
  3. Step 3: Cross multiply
    13,331.06x = 18,396.88 × 7,362.75
  4. Step 4: Simplify right side
    13,331.06x = 135,451,627.09
  5. Step 5: Solve for x
    x = 135,451,627.09/13,331.06
  6. Step 6: Final answer
    x = 10,160.61

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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.