Home / 11,690.97-16,133.88-6,385.87

Finding the Fourth Proportional to 11,690.97, 16,133.88 and 6,385.87

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Solution

The fourth proportional to 11,690.97, 16,133.88 and 6,385.87 is: 8,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.97 : 16,133.88 = 6,385.87 : x
  2. Step 2: Convert to fraction form
    11,690.97/16,133.88 = 6,385.87/x
  3. Step 3: Cross multiply
    11,690.97x = 16,133.88 × 6,385.87
  4. Step 4: Simplify right side
    11,690.97x = 103,028,860.28
  5. Step 5: Solve for x
    x = 103,028,860.28/11,690.97
  6. Step 6: Final answer
    x = 8,812.69

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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.