Home / 9,136.13-13,706.24-2,811.65

Finding the Fourth Proportional to 9,136.13, 13,706.24 and 2,811.65

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Solution

The fourth proportional to 9,136.13, 13,706.24 and 2,811.65 is: 4,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.13 : 13,706.24 = 2,811.65 : x
  2. Step 2: Convert to fraction form
    9,136.13/13,706.24 = 2,811.65/x
  3. Step 3: Cross multiply
    9,136.13x = 13,706.24 × 2,811.65
  4. Step 4: Simplify right side
    9,136.13x = 38,537,067.11
  5. Step 5: Solve for x
    x = 38,537,067.11/9,136.13
  6. Step 6: Final answer
    x = 4,218.10

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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.