Home / 11,821.86-16,314.26-6,516.68

Finding the Fourth Proportional to 11,821.86, 16,314.26 and 6,516.68

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Solution

The fourth proportional to 11,821.86, 16,314.26 and 6,516.68 is: 8,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.86 : 16,314.26 = 6,516.68 : x
  2. Step 2: Convert to fraction form
    11,821.86/16,314.26 = 6,516.68/x
  3. Step 3: Cross multiply
    11,821.86x = 16,314.26 × 6,516.68
  4. Step 4: Simplify right side
    11,821.86x = 106,314,697.70
  5. Step 5: Solve for x
    x = 106,314,697.70/11,821.86
  6. Step 6: Final answer
    x = 8,993.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.