Home / 18,220.05-27,330.75-6,371.51

Finding the Fourth Proportional to 18,220.05, 27,330.75 and 6,371.51

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Solution

The fourth proportional to 18,220.05, 27,330.75 and 6,371.51 is: 9,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.05 : 27,330.75 = 6,371.51 : x
  2. Step 2: Convert to fraction form
    18,220.05/27,330.75 = 6,371.51/x
  3. Step 3: Cross multiply
    18,220.05x = 27,330.75 × 6,371.51
  4. Step 4: Simplify right side
    18,220.05x = 174,138,010.28
  5. Step 5: Solve for x
    x = 174,138,010.28/18,220.05
  6. Step 6: Final answer
    x = 9,557.49

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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.