Home / 12,456.66-18,684.96-4,137.30

Finding the Fourth Proportional to 12,456.66, 18,684.96 and 4,137.30

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Solution

The fourth proportional to 12,456.66, 18,684.96 and 4,137.30 is: 6,205.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.66 : 18,684.96 = 4,137.30 : x
  2. Step 2: Convert to fraction form
    12,456.66/18,684.96 = 4,137.30/x
  3. Step 3: Cross multiply
    12,456.66x = 18,684.96 × 4,137.30
  4. Step 4: Simplify right side
    12,456.66x = 77,305,285.01
  5. Step 5: Solve for x
    x = 77,305,285.01/12,456.66
  6. Step 6: Final answer
    x = 6,205.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.