Home / 8,222.72-11,348.09-4,687.07

Finding the Fourth Proportional to 8,222.72, 11,348.09 and 4,687.07

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Solution

The fourth proportional to 8,222.72, 11,348.09 and 4,687.07 is: 6,468.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.72 : 11,348.09 = 4,687.07 : x
  2. Step 2: Convert to fraction form
    8,222.72/11,348.09 = 4,687.07/x
  3. Step 3: Cross multiply
    8,222.72x = 11,348.09 × 4,687.07
  4. Step 4: Simplify right side
    8,222.72x = 53,189,212.02
  5. Step 5: Solve for x
    x = 53,189,212.02/8,222.72
  6. Step 6: Final answer
    x = 6,468.57

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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.