Home / 9,212.42-12,715.83-5,235.72

Finding the Fourth Proportional to 9,212.42, 12,715.83 and 5,235.72

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Solution

The fourth proportional to 9,212.42, 12,715.83 and 5,235.72 is: 7,226.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.42 : 12,715.83 = 5,235.72 : x
  2. Step 2: Convert to fraction form
    9,212.42/12,715.83 = 5,235.72/x
  3. Step 3: Cross multiply
    9,212.42x = 12,715.83 × 5,235.72
  4. Step 4: Simplify right side
    9,212.42x = 66,576,525.45
  5. Step 5: Solve for x
    x = 66,576,525.45/9,212.42
  6. Step 6: Final answer
    x = 7,226.83

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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.