Home / 18,376.88-27,577.59-6,690.11

Finding the Fourth Proportional to 18,376.88, 27,577.59 and 6,690.11

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Solution

The fourth proportional to 18,376.88, 27,577.59 and 6,690.11 is: 10,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.88 : 27,577.59 = 6,690.11 : x
  2. Step 2: Convert to fraction form
    18,376.88/27,577.59 = 6,690.11/x
  3. Step 3: Cross multiply
    18,376.88x = 27,577.59 × 6,690.11
  4. Step 4: Simplify right side
    18,376.88x = 184,496,972.75
  5. Step 5: Solve for x
    x = 184,496,972.75/18,376.88
  6. Step 6: Final answer
    x = 10,039.63

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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.