Home / 12,974.25-19,465.97-6,405.05

Finding the Fourth Proportional to 12,974.25, 19,465.97 and 6,405.05

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Solution

The fourth proportional to 12,974.25, 19,465.97 and 6,405.05 is: 9,609.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.25 : 19,465.97 = 6,405.05 : x
  2. Step 2: Convert to fraction form
    12,974.25/19,465.97 = 6,405.05/x
  3. Step 3: Cross multiply
    12,974.25x = 19,465.97 × 6,405.05
  4. Step 4: Simplify right side
    12,974.25x = 124,680,511.15
  5. Step 5: Solve for x
    x = 124,680,511.15/12,974.25
  6. Step 6: Final answer
    x = 9,609.84

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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.