Home / 12,509.92-18,769.20-4,720.96

Finding the Fourth Proportional to 12,509.92, 18,769.20 and 4,720.96

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Solution

The fourth proportional to 12,509.92, 18,769.20 and 4,720.96 is: 7,083.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.92 : 18,769.20 = 4,720.96 : x
  2. Step 2: Convert to fraction form
    12,509.92/18,769.20 = 4,720.96/x
  3. Step 3: Cross multiply
    12,509.92x = 18,769.20 × 4,720.96
  4. Step 4: Simplify right side
    12,509.92x = 88,608,642.43
  5. Step 5: Solve for x
    x = 88,608,642.43/12,509.92
  6. Step 6: Final answer
    x = 7,083.07

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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.