Home / 15,145.86-22,722.39-4,757.61

Finding the Fourth Proportional to 15,145.86, 22,722.39 and 4,757.61

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Solution

The fourth proportional to 15,145.86, 22,722.39 and 4,757.61 is: 7,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.86 : 22,722.39 = 4,757.61 : x
  2. Step 2: Convert to fraction form
    15,145.86/22,722.39 = 4,757.61/x
  3. Step 3: Cross multiply
    15,145.86x = 22,722.39 × 4,757.61
  4. Step 4: Simplify right side
    15,145.86x = 108,104,269.89
  5. Step 5: Solve for x
    x = 108,104,269.89/15,145.86
  6. Step 6: Final answer
    x = 7,137.55

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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.