Home / 11,690.82-16,133.32-6,385.64

Finding the Fourth Proportional to 11,690.82, 16,133.32 and 6,385.64

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Solution

The fourth proportional to 11,690.82, 16,133.32 and 6,385.64 is: 8,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.82 : 16,133.32 = 6,385.64 : x
  2. Step 2: Convert to fraction form
    11,690.82/16,133.32 = 6,385.64/x
  3. Step 3: Cross multiply
    11,690.82x = 16,133.32 × 6,385.64
  4. Step 4: Simplify right side
    11,690.82x = 103,021,598.44
  5. Step 5: Solve for x
    x = 103,021,598.44/11,690.82
  6. Step 6: Final answer
    x = 8,812.18

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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.