Home / 13,121.46-19,668.42-4,354.02

Finding the Fourth Proportional to 13,121.46, 19,668.42 and 4,354.02

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Solution

The fourth proportional to 13,121.46, 19,668.42 and 4,354.02 is: 6,526.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.46 : 19,668.42 = 4,354.02 : x
  2. Step 2: Convert to fraction form
    13,121.46/19,668.42 = 4,354.02/x
  3. Step 3: Cross multiply
    13,121.46x = 19,668.42 × 4,354.02
  4. Step 4: Simplify right side
    13,121.46x = 85,636,694.05
  5. Step 5: Solve for x
    x = 85,636,694.05/13,121.46
  6. Step 6: Final answer
    x = 6,526.46

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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.