Home / 9,170.75-12,653.52-5,190.99

Finding the Fourth Proportional to 9,170.75, 12,653.52 and 5,190.99

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Solution

The fourth proportional to 9,170.75, 12,653.52 and 5,190.99 is: 7,162.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.75 : 12,653.52 = 5,190.99 : x
  2. Step 2: Convert to fraction form
    9,170.75/12,653.52 = 5,190.99/x
  3. Step 3: Cross multiply
    9,170.75x = 12,653.52 × 5,190.99
  4. Step 4: Simplify right side
    9,170.75x = 65,684,295.78
  5. Step 5: Solve for x
    x = 65,684,295.78/9,170.75
  6. Step 6: Final answer
    x = 7,162.37

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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.