Home / 9,198.94-12,693.90-5,220.13

Finding the Fourth Proportional to 9,198.94, 12,693.90 and 5,220.13

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Solution

The fourth proportional to 9,198.94, 12,693.90 and 5,220.13 is: 7,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.94 : 12,693.90 = 5,220.13 : x
  2. Step 2: Convert to fraction form
    9,198.94/12,693.90 = 5,220.13/x
  3. Step 3: Cross multiply
    9,198.94x = 12,693.90 × 5,220.13
  4. Step 4: Simplify right side
    9,198.94x = 66,263,808.21
  5. Step 5: Solve for x
    x = 66,263,808.21/9,198.94
  6. Step 6: Final answer
    x = 7,203.42

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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.