Home / 8,821.86-13,229.27-3,888

Finding the Fourth Proportional to 8,821.86, 13,229.27 and 3,888

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Solution

The fourth proportional to 8,821.86, 13,229.27 and 3,888 is: 5,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.86 : 13,229.27 = 3,888 : x
  2. Step 2: Convert to fraction form
    8,821.86/13,229.27 = 3,888/x
  3. Step 3: Cross multiply
    8,821.86x = 13,229.27 × 3,888
  4. Step 4: Simplify right side
    8,821.86x = 51,435,418.77
  5. Step 5: Solve for x
    x = 51,435,418.77/8,821.86
  6. Step 6: Final answer
    x = 5,830.45

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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.