Home / 9,120.94-13,681.39-2,195.44

Finding the Fourth Proportional to 9,120.94, 13,681.39 and 2,195.44

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Solution

The fourth proportional to 9,120.94, 13,681.39 and 2,195.44 is: 3,293.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.94 : 13,681.39 = 2,195.44 : x
  2. Step 2: Convert to fraction form
    9,120.94/13,681.39 = 2,195.44/x
  3. Step 3: Cross multiply
    9,120.94x = 13,681.39 × 2,195.44
  4. Step 4: Simplify right side
    9,120.94x = 30,036,670.86
  5. Step 5: Solve for x
    x = 30,036,670.86/9,120.94
  6. Step 6: Final answer
    x = 3,293.16

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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.