Home / 18,252.14-27,379.35-7,720.19

Finding the Fourth Proportional to 18,252.14, 27,379.35 and 7,720.19

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Solution

The fourth proportional to 18,252.14, 27,379.35 and 7,720.19 is: 11,580.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.14 : 27,379.35 = 7,720.19 : x
  2. Step 2: Convert to fraction form
    18,252.14/27,379.35 = 7,720.19/x
  3. Step 3: Cross multiply
    18,252.14x = 27,379.35 × 7,720.19
  4. Step 4: Simplify right side
    18,252.14x = 211,373,647.18
  5. Step 5: Solve for x
    x = 211,373,647.18/18,252.14
  6. Step 6: Final answer
    x = 11,580.76

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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.