Home / 13,311.47-19,964.76-3,450.12

Finding the Fourth Proportional to 13,311.47, 19,964.76 and 3,450.12

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Solution

The fourth proportional to 13,311.47, 19,964.76 and 3,450.12 is: 5,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.47 : 19,964.76 = 3,450.12 : x
  2. Step 2: Convert to fraction form
    13,311.47/19,964.76 = 3,450.12/x
  3. Step 3: Cross multiply
    13,311.47x = 19,964.76 × 3,450.12
  4. Step 4: Simplify right side
    13,311.47x = 68,880,817.77
  5. Step 5: Solve for x
    x = 68,880,817.77/13,311.47
  6. Step 6: Final answer
    x = 5,174.55

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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.