Home / 8,422.46-11,623.09-4,645.79

Finding the Fourth Proportional to 8,422.46, 11,623.09 and 4,645.79

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Solution

The fourth proportional to 8,422.46, 11,623.09 and 4,645.79 is: 6,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.46 : 11,623.09 = 4,645.79 : x
  2. Step 2: Convert to fraction form
    8,422.46/11,623.09 = 4,645.79/x
  3. Step 3: Cross multiply
    8,422.46x = 11,623.09 × 4,645.79
  4. Step 4: Simplify right side
    8,422.46x = 53,998,435.29
  5. Step 5: Solve for x
    x = 53,998,435.29/8,422.46
  6. Step 6: Final answer
    x = 6,411.24

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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.