Home / 12,469.77-18,698.40-4,146.86

Finding the Fourth Proportional to 12,469.77, 18,698.40 and 4,146.86

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Solution

The fourth proportional to 12,469.77, 18,698.40 and 4,146.86 is: 6,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.77 : 18,698.40 = 4,146.86 : x
  2. Step 2: Convert to fraction form
    12,469.77/18,698.40 = 4,146.86/x
  3. Step 3: Cross multiply
    12,469.77x = 18,698.40 × 4,146.86
  4. Step 4: Simplify right side
    12,469.77x = 77,539,553.53
  5. Step 5: Solve for x
    x = 77,539,553.53/12,469.77
  6. Step 6: Final answer
    x = 6,218.20

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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.