Home / 9,336.87-12,884.94-5,145.12

Finding the Fourth Proportional to 9,336.87, 12,884.94 and 5,145.12

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Solution

The fourth proportional to 9,336.87, 12,884.94 and 5,145.12 is: 7,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,336.87 : 12,884.94 = 5,145.12 : x
  2. Step 2: Convert to fraction form
    9,336.87/12,884.94 = 5,145.12/x
  3. Step 3: Cross multiply
    9,336.87x = 12,884.94 × 5,145.12
  4. Step 4: Simplify right side
    9,336.87x = 66,294,562.49
  5. Step 5: Solve for x
    x = 66,294,562.49/9,336.87
  6. Step 6: Final answer
    x = 7,100.30

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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.