Home / 12,539.44-18,812.03-4,219.23

Finding the Fourth Proportional to 12,539.44, 18,812.03 and 4,219.23

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Solution

The fourth proportional to 12,539.44, 18,812.03 and 4,219.23 is: 6,329.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.44 : 18,812.03 = 4,219.23 : x
  2. Step 2: Convert to fraction form
    12,539.44/18,812.03 = 4,219.23/x
  3. Step 3: Cross multiply
    12,539.44x = 18,812.03 × 4,219.23
  4. Step 4: Simplify right side
    12,539.44x = 79,372,299.57
  5. Step 5: Solve for x
    x = 79,372,299.57/12,539.44
  6. Step 6: Final answer
    x = 6,329.81

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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.