Home / 9,195.68-12,690.32-5,216.64

Finding the Fourth Proportional to 9,195.68, 12,690.32 and 5,216.64

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Solution

The fourth proportional to 9,195.68, 12,690.32 and 5,216.64 is: 7,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.68 : 12,690.32 = 5,216.64 : x
  2. Step 2: Convert to fraction form
    9,195.68/12,690.32 = 5,216.64/x
  3. Step 3: Cross multiply
    9,195.68x = 12,690.32 × 5,216.64
  4. Step 4: Simplify right side
    9,195.68x = 66,200,830.92
  5. Step 5: Solve for x
    x = 66,200,830.92/9,195.68
  6. Step 6: Final answer
    x = 7,199.12

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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.