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Finding the Fourth Proportional to 18,343.94, 27,500.12 and 7,804.30

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Solution

The fourth proportional to 18,343.94, 27,500.12 and 7,804.30 is: 11,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.94 : 27,500.12 = 7,804.30 : x
  2. Step 2: Convert to fraction form
    18,343.94/27,500.12 = 7,804.30/x
  3. Step 3: Cross multiply
    18,343.94x = 27,500.12 × 7,804.30
  4. Step 4: Simplify right side
    18,343.94x = 214,619,186.52
  5. Step 5: Solve for x
    x = 214,619,186.52/18,343.94
  6. Step 6: Final answer
    x = 11,699.73

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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.