Home / 18,520.06-27,784.40-5,372.68

Finding the Fourth Proportional to 18,520.06, 27,784.40 and 5,372.68

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Solution

The fourth proportional to 18,520.06, 27,784.40 and 5,372.68 is: 8,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.06 : 27,784.40 = 5,372.68 : x
  2. Step 2: Convert to fraction form
    18,520.06/27,784.40 = 5,372.68/x
  3. Step 3: Cross multiply
    18,520.06x = 27,784.40 × 5,372.68
  4. Step 4: Simplify right side
    18,520.06x = 149,276,690.19
  5. Step 5: Solve for x
    x = 149,276,690.19/18,520.06
  6. Step 6: Final answer
    x = 8,060.27

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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.