Home / 9,136.46-13,706.12-3,871.48

Finding the Fourth Proportional to 9,136.46, 13,706.12 and 3,871.48

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Solution

The fourth proportional to 9,136.46, 13,706.12 and 3,871.48 is: 5,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.46 : 13,706.12 = 3,871.48 : x
  2. Step 2: Convert to fraction form
    9,136.46/13,706.12 = 3,871.48/x
  3. Step 3: Cross multiply
    9,136.46x = 13,706.12 × 3,871.48
  4. Step 4: Simplify right side
    9,136.46x = 53,062,969.46
  5. Step 5: Solve for x
    x = 53,062,969.46/9,136.46
  6. Step 6: Final answer
    x = 5,807.83

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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.