Home / 9,819.12-14,728.60-3,975.64

Finding the Fourth Proportional to 9,819.12, 14,728.60 and 3,975.64

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Solution

The fourth proportional to 9,819.12, 14,728.60 and 3,975.64 is: 5,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.12 : 14,728.60 = 3,975.64 : x
  2. Step 2: Convert to fraction form
    9,819.12/14,728.60 = 3,975.64/x
  3. Step 3: Cross multiply
    9,819.12x = 14,728.60 × 3,975.64
  4. Step 4: Simplify right side
    9,819.12x = 58,555,611.30
  5. Step 5: Solve for x
    x = 58,555,611.30/9,819.12
  6. Step 6: Final answer
    x = 5,963.43

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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.