Home / 19,137.07-28,707.26-5,286.07

Finding the Fourth Proportional to 19,137.07, 28,707.26 and 5,286.07

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Solution

The fourth proportional to 19,137.07, 28,707.26 and 5,286.07 is: 7,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.07 : 28,707.26 = 5,286.07 : x
  2. Step 2: Convert to fraction form
    19,137.07/28,707.26 = 5,286.07/x
  3. Step 3: Cross multiply
    19,137.07x = 28,707.26 × 5,286.07
  4. Step 4: Simplify right side
    19,137.07x = 151,748,585.87
  5. Step 5: Solve for x
    x = 151,748,585.87/19,137.07
  6. Step 6: Final answer
    x = 7,929.56

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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.