Home / 12,190.79-18,277.31-8,232.23

Finding the Fourth Proportional to 12,190.79, 18,277.31 and 8,232.23

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Solution

The fourth proportional to 12,190.79, 18,277.31 and 8,232.23 is: 12,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.79 : 18,277.31 = 8,232.23 : x
  2. Step 2: Convert to fraction form
    12,190.79/18,277.31 = 8,232.23/x
  3. Step 3: Cross multiply
    12,190.79x = 18,277.31 × 8,232.23
  4. Step 4: Simplify right side
    12,190.79x = 150,463,077.29
  5. Step 5: Solve for x
    x = 150,463,077.29/12,190.79
  6. Step 6: Final answer
    x = 12,342.36

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Double scale
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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.