Home / 8,072.03-12,072.63-7,188.79

Finding the Fourth Proportional to 8,072.03, 12,072.63 and 7,188.79

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Solution

The fourth proportional to 8,072.03, 12,072.63 and 7,188.79 is: 10,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.03 : 12,072.63 = 7,188.79 : x
  2. Step 2: Convert to fraction form
    8,072.03/12,072.63 = 7,188.79/x
  3. Step 3: Cross multiply
    8,072.03x = 12,072.63 × 7,188.79
  4. Step 4: Simplify right side
    8,072.03x = 86,787,567.06
  5. Step 5: Solve for x
    x = 86,787,567.06/8,072.03
  6. Step 6: Final answer
    x = 10,751.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.