Home / 16,020.78-22,107.09-8,947.05

Finding the Fourth Proportional to 16,020.78, 22,107.09 and 8,947.05

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Solution

The fourth proportional to 16,020.78, 22,107.09 and 8,947.05 is: 12,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,020.78 : 22,107.09 = 8,947.05 : x
  2. Step 2: Convert to fraction form
    16,020.78/22,107.09 = 8,947.05/x
  3. Step 3: Cross multiply
    16,020.78x = 22,107.09 × 8,947.05
  4. Step 4: Simplify right side
    16,020.78x = 197,793,239.58
  5. Step 5: Solve for x
    x = 197,793,239.58/16,020.78
  6. Step 6: Final answer
    x = 12,346.04

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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.