Home / 11,827.78-16,305.35-9,305.53

Finding the Fourth Proportional to 11,827.78, 16,305.35 and 9,305.53

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Solution

The fourth proportional to 11,827.78, 16,305.35 and 9,305.53 is: 12,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,827.78 : 16,305.35 = 9,305.53 : x
  2. Step 2: Convert to fraction form
    11,827.78/16,305.35 = 9,305.53/x
  3. Step 3: Cross multiply
    11,827.78x = 16,305.35 × 9,305.53
  4. Step 4: Simplify right side
    11,827.78x = 151,729,906.09
  5. Step 5: Solve for x
    x = 151,729,906.09/11,827.78
  6. Step 6: Final answer
    x = 12,828.27

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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.