Home / 12,450.89-18,679.97-4,017.21

Finding the Fourth Proportional to 12,450.89, 18,679.97 and 4,017.21

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Solution

The fourth proportional to 12,450.89, 18,679.97 and 4,017.21 is: 6,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.89 : 18,679.97 = 4,017.21 : x
  2. Step 2: Convert to fraction form
    12,450.89/18,679.97 = 4,017.21/x
  3. Step 3: Cross multiply
    12,450.89x = 18,679.97 × 4,017.21
  4. Step 4: Simplify right side
    12,450.89x = 75,041,362.28
  5. Step 5: Solve for x
    x = 75,041,362.28/12,450.89
  6. Step 6: Final answer
    x = 6,026.99

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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.