Home / 13,181.58-18,190.41-7,213.14

Finding the Fourth Proportional to 13,181.58, 18,190.41 and 7,213.14

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Solution

The fourth proportional to 13,181.58, 18,190.41 and 7,213.14 is: 9,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.58 : 18,190.41 = 7,213.14 : x
  2. Step 2: Convert to fraction form
    13,181.58/18,190.41 = 7,213.14/x
  3. Step 3: Cross multiply
    13,181.58x = 18,190.41 × 7,213.14
  4. Step 4: Simplify right side
    13,181.58x = 131,209,973.99
  5. Step 5: Solve for x
    x = 131,209,973.99/13,181.58
  6. Step 6: Final answer
    x = 9,954.04

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Double scale
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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.