Home / 13,132.44-18,122.94-8,942.04

Finding the Fourth Proportional to 13,132.44, 18,122.94 and 8,942.04

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Solution

The fourth proportional to 13,132.44, 18,122.94 and 8,942.04 is: 12,340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.44 : 18,122.94 = 8,942.04 : x
  2. Step 2: Convert to fraction form
    13,132.44/18,122.94 = 8,942.04/x
  3. Step 3: Cross multiply
    13,132.44x = 18,122.94 × 8,942.04
  4. Step 4: Simplify right side
    13,132.44x = 162,056,054.40
  5. Step 5: Solve for x
    x = 162,056,054.40/13,132.44
  6. Step 6: Final answer
    x = 12,340.13

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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.