Home / 7,669.03-11,503.80-2,121.91

Finding the Fourth Proportional to 7,669.03, 11,503.80 and 2,121.91

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Solution

The fourth proportional to 7,669.03, 11,503.80 and 2,121.91 is: 3,182.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.03 : 11,503.80 = 2,121.91 : x
  2. Step 2: Convert to fraction form
    7,669.03/11,503.80 = 2,121.91/x
  3. Step 3: Cross multiply
    7,669.03x = 11,503.80 × 2,121.91
  4. Step 4: Simplify right side
    7,669.03x = 24,410,018.66
  5. Step 5: Solve for x
    x = 24,410,018.66/7,669.03
  6. Step 6: Final answer
    x = 3,182.93

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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.