Home / 18,798.18-28,198.04-10,530.87

Finding the Fourth Proportional to 18,798.18, 28,198.04 and 10,530.87

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Solution

The fourth proportional to 18,798.18, 28,198.04 and 10,530.87 is: 15,796.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798.18 : 28,198.04 = 10,530.87 : x
  2. Step 2: Convert to fraction form
    18,798.18/28,198.04 = 10,530.87/x
  3. Step 3: Cross multiply
    18,798.18x = 28,198.04 × 10,530.87
  4. Step 4: Simplify right side
    18,798.18x = 296,949,840.84
  5. Step 5: Solve for x
    x = 296,949,840.84/18,798.18
  6. Step 6: Final answer
    x = 15,796.73

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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.