Home / 6,623.99-9,921.40-4,422.41

Finding the Fourth Proportional to 6,623.99, 9,921.40 and 4,422.41

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Solution

The fourth proportional to 6,623.99, 9,921.40 and 4,422.41 is: 6,623.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.99 : 9,921.40 = 4,422.41 : x
  2. Step 2: Convert to fraction form
    6,623.99/9,921.40 = 4,422.41/x
  3. Step 3: Cross multiply
    6,623.99x = 9,921.40 × 4,422.41
  4. Step 4: Simplify right side
    6,623.99x = 43,876,498.57
  5. Step 5: Solve for x
    x = 43,876,498.57/6,623.99
  6. Step 6: Final answer
    x = 6,623.88

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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.