Home / 18,222.89-27,322.67-7,690.06

Finding the Fourth Proportional to 18,222.89, 27,322.67 and 7,690.06

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Solution

The fourth proportional to 18,222.89, 27,322.67 and 7,690.06 is: 11,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.89 : 27,322.67 = 7,690.06 : x
  2. Step 2: Convert to fraction form
    18,222.89/27,322.67 = 7,690.06/x
  3. Step 3: Cross multiply
    18,222.89x = 27,322.67 × 7,690.06
  4. Step 4: Simplify right side
    18,222.89x = 210,112,828.09
  5. Step 5: Solve for x
    x = 210,112,828.09/18,222.89
  6. Step 6: Final answer
    x = 11,530.16

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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.