Home / 18,127.72-27,188.49-4,977.01

Finding the Fourth Proportional to 18,127.72, 27,188.49 and 4,977.01

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Solution

The fourth proportional to 18,127.72, 27,188.49 and 4,977.01 is: 7,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.72 : 27,188.49 = 4,977.01 : x
  2. Step 2: Convert to fraction form
    18,127.72/27,188.49 = 4,977.01/x
  3. Step 3: Cross multiply
    18,127.72x = 27,188.49 × 4,977.01
  4. Step 4: Simplify right side
    18,127.72x = 135,317,250.67
  5. Step 5: Solve for x
    x = 135,317,250.67/18,127.72
  6. Step 6: Final answer
    x = 7,464.66

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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.