Home / 9,399.44-12,970.67-5,149.64

Finding the Fourth Proportional to 9,399.44, 12,970.67 and 5,149.64

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Solution

The fourth proportional to 9,399.44, 12,970.67 and 5,149.64 is: 7,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399.44 : 12,970.67 = 5,149.64 : x
  2. Step 2: Convert to fraction form
    9,399.44/12,970.67 = 5,149.64/x
  3. Step 3: Cross multiply
    9,399.44x = 12,970.67 × 5,149.64
  4. Step 4: Simplify right side
    9,399.44x = 66,794,287.74
  5. Step 5: Solve for x
    x = 66,794,287.74/9,399.44
  6. Step 6: Final answer
    x = 7,106.20

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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.