Home / 9,195.36-12,690.48-5,660.64

Finding the Fourth Proportional to 9,195.36, 12,690.48 and 5,660.64

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Solution

The fourth proportional to 9,195.36, 12,690.48 and 5,660.64 is: 7,812.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.36 : 12,690.48 = 5,660.64 : x
  2. Step 2: Convert to fraction form
    9,195.36/12,690.48 = 5,660.64/x
  3. Step 3: Cross multiply
    9,195.36x = 12,690.48 × 5,660.64
  4. Step 4: Simplify right side
    9,195.36x = 71,836,238.71
  5. Step 5: Solve for x
    x = 71,836,238.71/9,195.36
  6. Step 6: Final answer
    x = 7,812.23

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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.