Home / 7,929.30-11,877.80-3,756.66

Finding the Fourth Proportional to 7,929.30, 11,877.80 and 3,756.66

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Solution

The fourth proportional to 7,929.30, 11,877.80 and 3,756.66 is: 5,627.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.30 : 11,877.80 = 3,756.66 : x
  2. Step 2: Convert to fraction form
    7,929.30/11,877.80 = 3,756.66/x
  3. Step 3: Cross multiply
    7,929.30x = 11,877.80 × 3,756.66
  4. Step 4: Simplify right side
    7,929.30x = 44,620,865.54
  5. Step 5: Solve for x
    x = 44,620,865.54/7,929.30
  6. Step 6: Final answer
    x = 5,627.34

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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.