Home / 11,840.85-16,360.39-9,162.99

Finding the Fourth Proportional to 11,840.85, 16,360.39 and 9,162.99

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Solution

The fourth proportional to 11,840.85, 16,360.39 and 9,162.99 is: 12,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.85 : 16,360.39 = 9,162.99 : x
  2. Step 2: Convert to fraction form
    11,840.85/16,360.39 = 9,162.99/x
  3. Step 3: Cross multiply
    11,840.85x = 16,360.39 × 9,162.99
  4. Step 4: Simplify right side
    11,840.85x = 149,910,101.42
  5. Step 5: Solve for x
    x = 149,910,101.42/11,840.85
  6. Step 6: Final answer
    x = 12,660.42

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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.