Home / 8,322.24-11,461.44-6,912.12

Finding the Fourth Proportional to 8,322.24, 11,461.44 and 6,912.12

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Solution

The fourth proportional to 8,322.24, 11,461.44 and 6,912.12 is: 9,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.24 : 11,461.44 = 6,912.12 : x
  2. Step 2: Convert to fraction form
    8,322.24/11,461.44 = 6,912.12/x
  3. Step 3: Cross multiply
    8,322.24x = 11,461.44 × 6,912.12
  4. Step 4: Simplify right side
    8,322.24x = 79,222,848.65
  5. Step 5: Solve for x
    x = 79,222,848.65/8,322.24
  6. Step 6: Final answer
    x = 9,519.41

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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.