Home / 13,299.50-19,949.93-3,438.86

Finding the Fourth Proportional to 13,299.50, 19,949.93 and 3,438.86

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Solution

The fourth proportional to 13,299.50, 19,949.93 and 3,438.86 is: 5,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.50 : 19,949.93 = 3,438.86 : x
  2. Step 2: Convert to fraction form
    13,299.50/19,949.93 = 3,438.86/x
  3. Step 3: Cross multiply
    13,299.50x = 19,949.93 × 3,438.86
  4. Step 4: Simplify right side
    13,299.50x = 68,605,016.28
  5. Step 5: Solve for x
    x = 68,605,016.28/13,299.50
  6. Step 6: Final answer
    x = 5,158.47

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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.