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Finding the Fourth Proportional to 18,380.93, 27,555.21 and 7,295.40

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Solution

The fourth proportional to 18,380.93, 27,555.21 and 7,295.40 is: 10,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.93 : 27,555.21 = 7,295.40 : x
  2. Step 2: Convert to fraction form
    18,380.93/27,555.21 = 7,295.40/x
  3. Step 3: Cross multiply
    18,380.93x = 27,555.21 × 7,295.40
  4. Step 4: Simplify right side
    18,380.93x = 201,026,279.03
  5. Step 5: Solve for x
    x = 201,026,279.03/18,380.93
  6. Step 6: Final answer
    x = 10,936.68

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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.