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Finding the Fourth Proportional to 9,199.59, 12,693.42 and 5,219.79

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Solution

The fourth proportional to 9,199.59, 12,693.42 and 5,219.79 is: 7,202.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.59 : 12,693.42 = 5,219.79 : x
  2. Step 2: Convert to fraction form
    9,199.59/12,693.42 = 5,219.79/x
  3. Step 3: Cross multiply
    9,199.59x = 12,693.42 × 5,219.79
  4. Step 4: Simplify right side
    9,199.59x = 66,256,986.78
  5. Step 5: Solve for x
    x = 66,256,986.78/9,199.59
  6. Step 6: Final answer
    x = 7,202.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.