Home / 12,345.63-16,922.67-12,179.49

Finding the Fourth Proportional to 12,345.63, 16,922.67 and 12,179.49

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Solution

The fourth proportional to 12,345.63, 16,922.67 and 12,179.49 is: 16,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.63 : 16,922.67 = 12,179.49 : x
  2. Step 2: Convert to fraction form
    12,345.63/16,922.67 = 12,179.49/x
  3. Step 3: Cross multiply
    12,345.63x = 16,922.67 × 12,179.49
  4. Step 4: Simplify right side
    12,345.63x = 206,109,490.04
  5. Step 5: Solve for x
    x = 206,109,490.04/12,345.63
  6. Step 6: Final answer
    x = 16,694.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.