Home / 14,206.92-21,308.76-12,121.98

Finding the Fourth Proportional to 14,206.92, 21,308.76 and 12,121.98

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Solution

The fourth proportional to 14,206.92, 21,308.76 and 12,121.98 is: 18,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,206.92 : 21,308.76 = 12,121.98 : x
  2. Step 2: Convert to fraction form
    14,206.92/21,308.76 = 12,121.98/x
  3. Step 3: Cross multiply
    14,206.92x = 21,308.76 × 12,121.98
  4. Step 4: Simplify right side
    14,206.92x = 258,304,362.54
  5. Step 5: Solve for x
    x = 258,304,362.54/14,206.92
  6. Step 6: Final answer
    x = 18,181.59

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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.