Home / 12,110.31-16,690.46-8,961.03

Finding the Fourth Proportional to 12,110.31, 16,690.46 and 8,961.03

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Solution

The fourth proportional to 12,110.31, 16,690.46 and 8,961.03 is: 12,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.31 : 16,690.46 = 8,961.03 : x
  2. Step 2: Convert to fraction form
    12,110.31/16,690.46 = 8,961.03/x
  3. Step 3: Cross multiply
    12,110.31x = 16,690.46 × 8,961.03
  4. Step 4: Simplify right side
    12,110.31x = 149,563,667.97
  5. Step 5: Solve for x
    x = 149,563,667.97/12,110.31
  6. Step 6: Final answer
    x = 12,350.11

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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.