Home / 14,684.76-21,971.94-8,739.78

Finding the Fourth Proportional to 14,684.76, 21,971.94 and 8,739.78

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Solution

The fourth proportional to 14,684.76, 21,971.94 and 8,739.78 is: 13,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,684.76 : 21,971.94 = 8,739.78 : x
  2. Step 2: Convert to fraction form
    14,684.76/21,971.94 = 8,739.78/x
  3. Step 3: Cross multiply
    14,684.76x = 21,971.94 × 8,739.78
  4. Step 4: Simplify right side
    14,684.76x = 192,029,921.77
  5. Step 5: Solve for x
    x = 192,029,921.77/14,684.76
  6. Step 6: Final answer
    x = 13,076.82

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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.