Home / 11,309.86-16,966.05-3,914.98

Finding the Fourth Proportional to 11,309.86, 16,966.05 and 3,914.98

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Solution

The fourth proportional to 11,309.86, 16,966.05 and 3,914.98 is: 5,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.86 : 16,966.05 = 3,914.98 : x
  2. Step 2: Convert to fraction form
    11,309.86/16,966.05 = 3,914.98/x
  3. Step 3: Cross multiply
    11,309.86x = 16,966.05 × 3,914.98
  4. Step 4: Simplify right side
    11,309.86x = 66,421,746.43
  5. Step 5: Solve for x
    x = 66,421,746.43/11,309.86
  6. Step 6: Final answer
    x = 5,872.91

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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.