Home / 11,166.66-15,408.90-6,450.84

Finding the Fourth Proportional to 11,166.66, 15,408.90 and 6,450.84

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Solution

The fourth proportional to 11,166.66, 15,408.90 and 6,450.84 is: 8,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.66 : 15,408.90 = 6,450.84 : x
  2. Step 2: Convert to fraction form
    11,166.66/15,408.90 = 6,450.84/x
  3. Step 3: Cross multiply
    11,166.66x = 15,408.90 × 6,450.84
  4. Step 4: Simplify right side
    11,166.66x = 99,400,348.48
  5. Step 5: Solve for x
    x = 99,400,348.48/11,166.66
  6. Step 6: Final answer
    x = 8,901.53

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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.