Home / 13,181.26-18,190.43-7,212.93

Finding the Fourth Proportional to 13,181.26, 18,190.43 and 7,212.93

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Solution

The fourth proportional to 13,181.26, 18,190.43 and 7,212.93 is: 9,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.26 : 18,190.43 = 7,212.93 : x
  2. Step 2: Convert to fraction form
    13,181.26/18,190.43 = 7,212.93/x
  3. Step 3: Cross multiply
    13,181.26x = 18,190.43 × 7,212.93
  4. Step 4: Simplify right side
    13,181.26x = 131,206,298.26
  5. Step 5: Solve for x
    x = 131,206,298.26/13,181.26
  6. Step 6: Final answer
    x = 9,954.00

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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.