Home / 19,137.32-28,707.64-5,286.32

Finding the Fourth Proportional to 19,137.32, 28,707.64 and 5,286.32

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Solution

The fourth proportional to 19,137.32, 28,707.64 and 5,286.32 is: 7,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.32 : 28,707.64 = 5,286.32 : x
  2. Step 2: Convert to fraction form
    19,137.32/28,707.64 = 5,286.32/x
  3. Step 3: Cross multiply
    19,137.32x = 28,707.64 × 5,286.32
  4. Step 4: Simplify right side
    19,137.32x = 151,757,771.48
  5. Step 5: Solve for x
    x = 151,757,771.48/19,137.32
  6. Step 6: Final answer
    x = 7,929.94

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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.