Home / 7,817.31-11,725.53-2,195.35

Finding the Fourth Proportional to 7,817.31, 11,725.53 and 2,195.35

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Solution

The fourth proportional to 7,817.31, 11,725.53 and 2,195.35 is: 3,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.31 : 11,725.53 = 2,195.35 : x
  2. Step 2: Convert to fraction form
    7,817.31/11,725.53 = 2,195.35/x
  3. Step 3: Cross multiply
    7,817.31x = 11,725.53 × 2,195.35
  4. Step 4: Simplify right side
    7,817.31x = 25,741,670.70
  5. Step 5: Solve for x
    x = 25,741,670.70/7,817.31
  6. Step 6: Final answer
    x = 3,292.91

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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.