Home / 12,964.25-19,447.19-4,200.05

Finding the Fourth Proportional to 12,964.25, 19,447.19 and 4,200.05

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Solution

The fourth proportional to 12,964.25, 19,447.19 and 4,200.05 is: 6,300.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.25 : 19,447.19 = 4,200.05 : x
  2. Step 2: Convert to fraction form
    12,964.25/19,447.19 = 4,200.05/x
  3. Step 3: Cross multiply
    12,964.25x = 19,447.19 × 4,200.05
  4. Step 4: Simplify right side
    12,964.25x = 81,679,052.12
  5. Step 5: Solve for x
    x = 81,679,052.12/12,964.25
  6. Step 6: Final answer
    x = 6,300.33

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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.