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Finding the Fourth Proportional to 18,130.84, 27,195.68 and 4,983.09

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Solution

The fourth proportional to 18,130.84, 27,195.68 and 4,983.09 is: 7,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.84 : 27,195.68 = 4,983.09 : x
  2. Step 2: Convert to fraction form
    18,130.84/27,195.68 = 4,983.09/x
  3. Step 3: Cross multiply
    18,130.84x = 27,195.68 × 4,983.09
  4. Step 4: Simplify right side
    18,130.84x = 135,518,601.50
  5. Step 5: Solve for x
    x = 135,518,601.50/18,130.84
  6. Step 6: Final answer
    x = 7,474.48

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1.5x scale

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.