Home / 18,187.53-27,222.09-10,169.07

Finding the Fourth Proportional to 18,187.53, 27,222.09 and 10,169.07

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Solution

The fourth proportional to 18,187.53, 27,222.09 and 10,169.07 is: 15,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.53 : 27,222.09 = 10,169.07 : x
  2. Step 2: Convert to fraction form
    18,187.53/27,222.09 = 10,169.07/x
  3. Step 3: Cross multiply
    18,187.53x = 27,222.09 × 10,169.07
  4. Step 4: Simplify right side
    18,187.53x = 276,823,338.76
  5. Step 5: Solve for x
    x = 276,823,338.76/18,187.53
  6. Step 6: Final answer
    x = 15,220.50

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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.