Home / 16,220.10-22,383.70-9,146.47

Finding the Fourth Proportional to 16,220.10, 22,383.70 and 9,146.47

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Solution

The fourth proportional to 16,220.10, 22,383.70 and 9,146.47 is: 12,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.10 : 22,383.70 = 9,146.47 : x
  2. Step 2: Convert to fraction form
    16,220.10/22,383.70 = 9,146.47/x
  3. Step 3: Cross multiply
    16,220.10x = 22,383.70 × 9,146.47
  4. Step 4: Simplify right side
    16,220.10x = 204,731,840.54
  5. Step 5: Solve for x
    x = 204,731,840.54/16,220.10
  6. Step 6: Final answer
    x = 12,622.11

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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.