Home / 12,133.16-18,200.22-3,814.28

Finding the Fourth Proportional to 12,133.16, 18,200.22 and 3,814.28

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Solution

The fourth proportional to 12,133.16, 18,200.22 and 3,814.28 is: 5,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.16 : 18,200.22 = 3,814.28 : x
  2. Step 2: Convert to fraction form
    12,133.16/18,200.22 = 3,814.28/x
  3. Step 3: Cross multiply
    12,133.16x = 18,200.22 × 3,814.28
  4. Step 4: Simplify right side
    12,133.16x = 69,420,735.14
  5. Step 5: Solve for x
    x = 69,420,735.14/12,133.16
  6. Step 6: Final answer
    x = 5,721.57

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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.