Home / 18,521.43-27,784.88-5,372.10

Finding the Fourth Proportional to 18,521.43, 27,784.88 and 5,372.10

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Solution

The fourth proportional to 18,521.43, 27,784.88 and 5,372.10 is: 8,058.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.43 : 27,784.88 = 5,372.10 : x
  2. Step 2: Convert to fraction form
    18,521.43/27,784.88 = 5,372.10/x
  3. Step 3: Cross multiply
    18,521.43x = 27,784.88 × 5,372.10
  4. Step 4: Simplify right side
    18,521.43x = 149,263,153.85
  5. Step 5: Solve for x
    x = 149,263,153.85/18,521.43
  6. Step 6: Final answer
    x = 8,058.94

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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.