Home / 9,198.14-12,693.48-5,218.47

Finding the Fourth Proportional to 9,198.14, 12,693.48 and 5,218.47

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Solution

The fourth proportional to 9,198.14, 12,693.48 and 5,218.47 is: 7,201.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.14 : 12,693.48 = 5,218.47 : x
  2. Step 2: Convert to fraction form
    9,198.14/12,693.48 = 5,218.47/x
  3. Step 3: Cross multiply
    9,198.14x = 12,693.48 × 5,218.47
  4. Step 4: Simplify right side
    9,198.14x = 66,240,525.01
  5. Step 5: Solve for x
    x = 66,240,525.01/9,198.14
  6. Step 6: Final answer
    x = 7,201.52

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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.