Home / 15,138.92-22,709.34-4,751.08

Finding the Fourth Proportional to 15,138.92, 22,709.34 and 4,751.08

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Solution

The fourth proportional to 15,138.92, 22,709.34 and 4,751.08 is: 7,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.92 : 22,709.34 = 4,751.08 : x
  2. Step 2: Convert to fraction form
    15,138.92/22,709.34 = 4,751.08/x
  3. Step 3: Cross multiply
    15,138.92x = 22,709.34 × 4,751.08
  4. Step 4: Simplify right side
    15,138.92x = 107,893,891.09
  5. Step 5: Solve for x
    x = 107,893,891.09/15,138.92
  6. Step 6: Final answer
    x = 7,126.92

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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.