Home / 9,311.05-12,850.45-7,069.07

Finding the Fourth Proportional to 9,311.05, 12,850.45 and 7,069.07

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Solution

The fourth proportional to 9,311.05, 12,850.45 and 7,069.07 is: 9,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.05 : 12,850.45 = 7,069.07 : x
  2. Step 2: Convert to fraction form
    9,311.05/12,850.45 = 7,069.07/x
  3. Step 3: Cross multiply
    9,311.05x = 12,850.45 × 7,069.07
  4. Step 4: Simplify right side
    9,311.05x = 90,840,745.03
  5. Step 5: Solve for x
    x = 90,840,745.03/9,311.05
  6. Step 6: Final answer
    x = 9,756.23

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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.