Home / 7,813.89-11,725.38-3,136.14

Finding the Fourth Proportional to 7,813.89, 11,725.38 and 3,136.14

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Solution

The fourth proportional to 7,813.89, 11,725.38 and 3,136.14 is: 4,706.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.89 : 11,725.38 = 3,136.14 : x
  2. Step 2: Convert to fraction form
    7,813.89/11,725.38 = 3,136.14/x
  3. Step 3: Cross multiply
    7,813.89x = 11,725.38 × 3,136.14
  4. Step 4: Simplify right side
    7,813.89x = 36,772,433.23
  5. Step 5: Solve for x
    x = 36,772,433.23/7,813.89
  6. Step 6: Final answer
    x = 4,706.03

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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.