Home / 12,686.94-19,033.60-4,789.44

Finding the Fourth Proportional to 12,686.94, 19,033.60 and 4,789.44

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Solution

The fourth proportional to 12,686.94, 19,033.60 and 4,789.44 is: 7,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.94 : 19,033.60 = 4,789.44 : x
  2. Step 2: Convert to fraction form
    12,686.94/19,033.60 = 4,789.44/x
  3. Step 3: Cross multiply
    12,686.94x = 19,033.60 × 4,789.44
  4. Step 4: Simplify right side
    12,686.94x = 91,160,285.18
  5. Step 5: Solve for x
    x = 91,160,285.18/12,686.94
  6. Step 6: Final answer
    x = 7,185.36

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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.