Home / 8,222.46-11,346.96-4,686.78

Finding the Fourth Proportional to 8,222.46, 11,346.96 and 4,686.78

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Solution

The fourth proportional to 8,222.46, 11,346.96 and 4,686.78 is: 6,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.46 : 11,346.96 = 4,686.78 : x
  2. Step 2: Convert to fraction form
    8,222.46/11,346.96 = 4,686.78/x
  3. Step 3: Cross multiply
    8,222.46x = 11,346.96 × 4,686.78
  4. Step 4: Simplify right side
    8,222.46x = 53,180,705.19
  5. Step 5: Solve for x
    x = 53,180,705.19/8,222.46
  6. Step 6: Final answer
    x = 6,467.74

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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.