Home / 13,136.76-19,706.49-4,369.32

Finding the Fourth Proportional to 13,136.76, 19,706.49 and 4,369.32

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Solution

The fourth proportional to 13,136.76, 19,706.49 and 4,369.32 is: 6,554.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.76 : 19,706.49 = 4,369.32 : x
  2. Step 2: Convert to fraction form
    13,136.76/19,706.49 = 4,369.32/x
  3. Step 3: Cross multiply
    13,136.76x = 19,706.49 × 4,369.32
  4. Step 4: Simplify right side
    13,136.76x = 86,103,960.89
  5. Step 5: Solve for x
    x = 86,103,960.89/13,136.76
  6. Step 6: Final answer
    x = 6,554.43

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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.