Home / 12,968.14-19,328.84-12,229.96

Finding the Fourth Proportional to 12,968.14, 19,328.84 and 12,229.96

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Solution

The fourth proportional to 12,968.14, 19,328.84 and 12,229.96 is: 18,228.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.14 : 19,328.84 = 12,229.96 : x
  2. Step 2: Convert to fraction form
    12,968.14/19,328.84 = 12,229.96/x
  3. Step 3: Cross multiply
    12,968.14x = 19,328.84 × 12,229.96
  4. Step 4: Simplify right side
    12,968.14x = 236,390,940.05
  5. Step 5: Solve for x
    x = 236,390,940.05/12,968.14
  6. Step 6: Final answer
    x = 18,228.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.