Home / 18,617.45-27,922.86-5,291.33

Finding the Fourth Proportional to 18,617.45, 27,922.86 and 5,291.33

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Solution

The fourth proportional to 18,617.45, 27,922.86 and 5,291.33 is: 7,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.45 : 27,922.86 = 5,291.33 : x
  2. Step 2: Convert to fraction form
    18,617.45/27,922.86 = 5,291.33/x
  3. Step 3: Cross multiply
    18,617.45x = 27,922.86 × 5,291.33
  4. Step 4: Simplify right side
    18,617.45x = 147,748,927.19
  5. Step 5: Solve for x
    x = 147,748,927.19/18,617.45
  6. Step 6: Final answer
    x = 7,936.05

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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.