Home / 11,166.60-15,411.24-6,450.78

Finding the Fourth Proportional to 11,166.60, 15,411.24 and 6,450.78

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Solution

The fourth proportional to 11,166.60, 15,411.24 and 6,450.78 is: 8,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.60 : 15,411.24 = 6,450.78 : x
  2. Step 2: Convert to fraction form
    11,166.60/15,411.24 = 6,450.78/x
  3. Step 3: Cross multiply
    11,166.60x = 15,411.24 × 6,450.78
  4. Step 4: Simplify right side
    11,166.60x = 99,414,518.77
  5. Step 5: Solve for x
    x = 99,414,518.77/11,166.60
  6. Step 6: Final answer
    x = 8,902.85

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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.