Home / 19,013.86-28,520.61-5,162.86

Finding the Fourth Proportional to 19,013.86, 28,520.61 and 5,162.86

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Solution

The fourth proportional to 19,013.86, 28,520.61 and 5,162.86 is: 7,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.86 : 28,520.61 = 5,162.86 : x
  2. Step 2: Convert to fraction form
    19,013.86/28,520.61 = 5,162.86/x
  3. Step 3: Cross multiply
    19,013.86x = 28,520.61 × 5,162.86
  4. Step 4: Simplify right side
    19,013.86x = 147,247,916.54
  5. Step 5: Solve for x
    x = 147,247,916.54/19,013.86
  6. Step 6: Final answer
    x = 7,744.24

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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.