Home / 10,791.77-16,166.90-6,619.61

Finding the Fourth Proportional to 10,791.77, 16,166.90 and 6,619.61

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Solution

The fourth proportional to 10,791.77, 16,166.90 and 6,619.61 is: 9,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.77 : 16,166.90 = 6,619.61 : x
  2. Step 2: Convert to fraction form
    10,791.77/16,166.90 = 6,619.61/x
  3. Step 3: Cross multiply
    10,791.77x = 16,166.90 × 6,619.61
  4. Step 4: Simplify right side
    10,791.77x = 107,018,629.88
  5. Step 5: Solve for x
    x = 107,018,629.88/10,791.77
  6. Step 6: Final answer
    x = 9,916.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.