Home / 12,698.58-19,049.31-3,935.70

Finding the Fourth Proportional to 12,698.58, 19,049.31 and 3,935.70

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Solution

The fourth proportional to 12,698.58, 19,049.31 and 3,935.70 is: 5,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.58 : 19,049.31 = 3,935.70 : x
  2. Step 2: Convert to fraction form
    12,698.58/19,049.31 = 3,935.70/x
  3. Step 3: Cross multiply
    12,698.58x = 19,049.31 × 3,935.70
  4. Step 4: Simplify right side
    12,698.58x = 74,972,369.37
  5. Step 5: Solve for x
    x = 74,972,369.37/12,698.58
  6. Step 6: Final answer
    x = 5,904.00

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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.