Home / 11,396.35-15,728.30-6,680.62

Finding the Fourth Proportional to 11,396.35, 15,728.30 and 6,680.62

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Solution

The fourth proportional to 11,396.35, 15,728.30 and 6,680.62 is: 9,220.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.35 : 15,728.30 = 6,680.62 : x
  2. Step 2: Convert to fraction form
    11,396.35/15,728.30 = 6,680.62/x
  3. Step 3: Cross multiply
    11,396.35x = 15,728.30 × 6,680.62
  4. Step 4: Simplify right side
    11,396.35x = 105,074,795.55
  5. Step 5: Solve for x
    x = 105,074,795.55/11,396.35
  6. Step 6: Final answer
    x = 9,220.04

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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.