Home / 12,389.94-18,586.11-4,069.62

Finding the Fourth Proportional to 12,389.94, 18,586.11 and 4,069.62

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Solution

The fourth proportional to 12,389.94, 18,586.11 and 4,069.62 is: 6,104.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.94 : 18,586.11 = 4,069.62 : x
  2. Step 2: Convert to fraction form
    12,389.94/18,586.11 = 4,069.62/x
  3. Step 3: Cross multiply
    12,389.94x = 18,586.11 × 4,069.62
  4. Step 4: Simplify right side
    12,389.94x = 75,638,404.98
  5. Step 5: Solve for x
    x = 75,638,404.98/12,389.94
  6. Step 6: Final answer
    x = 6,104.82

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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.