Home / 7,943.24-11,861.38-6,485.24

Finding the Fourth Proportional to 7,943.24, 11,861.38 and 6,485.24

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Solution

The fourth proportional to 7,943.24, 11,861.38 and 6,485.24 is: 9,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.24 : 11,861.38 = 6,485.24 : x
  2. Step 2: Convert to fraction form
    7,943.24/11,861.38 = 6,485.24/x
  3. Step 3: Cross multiply
    7,943.24x = 11,861.38 × 6,485.24
  4. Step 4: Simplify right side
    7,943.24x = 76,923,896.03
  5. Step 5: Solve for x
    x = 76,923,896.03/7,943.24
  6. Step 6: Final answer
    x = 9,684.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.