Home / 18,382.17-27,563.54-7,988.25

Finding the Fourth Proportional to 18,382.17, 27,563.54 and 7,988.25

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Solution

The fourth proportional to 18,382.17, 27,563.54 and 7,988.25 is: 11,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.17 : 27,563.54 = 7,988.25 : x
  2. Step 2: Convert to fraction form
    18,382.17/27,563.54 = 7,988.25/x
  3. Step 3: Cross multiply
    18,382.17x = 27,563.54 × 7,988.25
  4. Step 4: Simplify right side
    18,382.17x = 220,184,408.46
  5. Step 5: Solve for x
    x = 220,184,408.46/18,382.17
  6. Step 6: Final answer
    x = 11,978.15

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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.