Home / 11,166.86-15,409.71-6,450.86

Finding the Fourth Proportional to 11,166.86, 15,409.71 and 6,450.86

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Solution

The fourth proportional to 11,166.86, 15,409.71 and 6,450.86 is: 8,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.86 : 15,409.71 = 6,450.86 : x
  2. Step 2: Convert to fraction form
    11,166.86/15,409.71 = 6,450.86/x
  3. Step 3: Cross multiply
    11,166.86x = 15,409.71 × 6,450.86
  4. Step 4: Simplify right side
    11,166.86x = 99,405,881.85
  5. Step 5: Solve for x
    x = 99,405,881.85/11,166.86
  6. Step 6: Final answer
    x = 8,901.87

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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.