Home / 8,190.36-12,287.70-4,293.72

Finding the Fourth Proportional to 8,190.36, 12,287.70 and 4,293.72

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Solution

The fourth proportional to 8,190.36, 12,287.70 and 4,293.72 is: 6,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.36 : 12,287.70 = 4,293.72 : x
  2. Step 2: Convert to fraction form
    8,190.36/12,287.70 = 4,293.72/x
  3. Step 3: Cross multiply
    8,190.36x = 12,287.70 × 4,293.72
  4. Step 4: Simplify right side
    8,190.36x = 52,759,943.24
  5. Step 5: Solve for x
    x = 52,759,943.24/8,190.36
  6. Step 6: Final answer
    x = 6,441.71

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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.