Home / 18,926.16-28,356.84-10,134.96

Finding the Fourth Proportional to 18,926.16, 28,356.84 and 10,134.96

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Solution

The fourth proportional to 18,926.16, 28,356.84 and 10,134.96 is: 15,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.16 : 28,356.84 = 10,134.96 : x
  2. Step 2: Convert to fraction form
    18,926.16/28,356.84 = 10,134.96/x
  3. Step 3: Cross multiply
    18,926.16x = 28,356.84 × 10,134.96
  4. Step 4: Simplify right side
    18,926.16x = 287,395,439.13
  5. Step 5: Solve for x
    x = 287,395,439.13/18,926.16
  6. Step 6: Final answer
    x = 15,185.09

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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.