Home / 18,131.36-27,192.42-5,649.05

Finding the Fourth Proportional to 18,131.36, 27,192.42 and 5,649.05

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Solution

The fourth proportional to 18,131.36, 27,192.42 and 5,649.05 is: 8,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.36 : 27,192.42 = 5,649.05 : x
  2. Step 2: Convert to fraction form
    18,131.36/27,192.42 = 5,649.05/x
  3. Step 3: Cross multiply
    18,131.36x = 27,192.42 × 5,649.05
  4. Step 4: Simplify right side
    18,131.36x = 153,611,394.06
  5. Step 5: Solve for x
    x = 153,611,394.06/18,131.36
  6. Step 6: Final answer
    x = 8,472.14

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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.