Home / 8,222.32-11,353.26-5,391.64

Finding the Fourth Proportional to 8,222.32, 11,353.26 and 5,391.64

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Solution

The fourth proportional to 8,222.32, 11,353.26 and 5,391.64 is: 7,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.32 : 11,353.26 = 5,391.64 : x
  2. Step 2: Convert to fraction form
    8,222.32/11,353.26 = 5,391.64/x
  3. Step 3: Cross multiply
    8,222.32x = 11,353.26 × 5,391.64
  4. Step 4: Simplify right side
    8,222.32x = 61,212,690.75
  5. Step 5: Solve for x
    x = 61,212,690.75/8,222.32
  6. Step 6: Final answer
    x = 7,444.70

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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.