Home / 9,198.28-12,693.72-5,219.65

Finding the Fourth Proportional to 9,198.28, 12,693.72 and 5,219.65

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Solution

The fourth proportional to 9,198.28, 12,693.72 and 5,219.65 is: 7,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.28 : 12,693.72 = 5,219.65 : x
  2. Step 2: Convert to fraction form
    9,198.28/12,693.72 = 5,219.65/x
  3. Step 3: Cross multiply
    9,198.28x = 12,693.72 × 5,219.65
  4. Step 4: Simplify right side
    9,198.28x = 66,256,775.60
  5. Step 5: Solve for x
    x = 66,256,775.60/9,198.28
  6. Step 6: Final answer
    x = 7,203.17

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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.