Home / 9,362.09-12,919.60-5,170.25

Finding the Fourth Proportional to 9,362.09, 12,919.60 and 5,170.25

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Solution

The fourth proportional to 9,362.09, 12,919.60 and 5,170.25 is: 7,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.09 : 12,919.60 = 5,170.25 : x
  2. Step 2: Convert to fraction form
    9,362.09/12,919.60 = 5,170.25/x
  3. Step 3: Cross multiply
    9,362.09x = 12,919.60 × 5,170.25
  4. Step 4: Simplify right side
    9,362.09x = 66,797,561.90
  5. Step 5: Solve for x
    x = 66,797,561.90/9,362.09
  6. Step 6: Final answer
    x = 7,134.90

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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.