Home / 11,640.78-16,064.43-6,604.62

Finding the Fourth Proportional to 11,640.78, 16,064.43 and 6,604.62

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Solution

The fourth proportional to 11,640.78, 16,064.43 and 6,604.62 is: 9,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.78 : 16,064.43 = 6,604.62 : x
  2. Step 2: Convert to fraction form
    11,640.78/16,064.43 = 6,604.62/x
  3. Step 3: Cross multiply
    11,640.78x = 16,064.43 × 6,604.62
  4. Step 4: Simplify right side
    11,640.78x = 106,099,455.67
  5. Step 5: Solve for x
    x = 106,099,455.67/11,640.78
  6. Step 6: Final answer
    x = 9,114.46

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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.