Home / 16,220.64-22,383.81-9,147.72

Finding the Fourth Proportional to 16,220.64, 22,383.81 and 9,147.72

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Solution

The fourth proportional to 16,220.64, 22,383.81 and 9,147.72 is: 12,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.64 : 22,383.81 = 9,147.72 : x
  2. Step 2: Convert to fraction form
    16,220.64/22,383.81 = 9,147.72/x
  3. Step 3: Cross multiply
    16,220.64x = 22,383.81 × 9,147.72
  4. Step 4: Simplify right side
    16,220.64x = 204,760,826.41
  5. Step 5: Solve for x
    x = 204,760,826.41/16,220.64
  6. Step 6: Final answer
    x = 12,623.47

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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.