Home / 11,394.75-15,725.37-6,680.55

Finding the Fourth Proportional to 11,394.75, 15,725.37 and 6,680.55

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Solution

The fourth proportional to 11,394.75, 15,725.37 and 6,680.55 is: 9,219.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.75 : 15,725.37 = 6,680.55 : x
  2. Step 2: Convert to fraction form
    11,394.75/15,725.37 = 6,680.55/x
  3. Step 3: Cross multiply
    11,394.75x = 15,725.37 × 6,680.55
  4. Step 4: Simplify right side
    11,394.75x = 105,054,120.55
  5. Step 5: Solve for x
    x = 105,054,120.55/11,394.75
  6. Step 6: Final answer
    x = 9,219.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.