Home / 8,422.68-11,623.49-4,645.96

Finding the Fourth Proportional to 8,422.68, 11,623.49 and 4,645.96

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Solution

The fourth proportional to 8,422.68, 11,623.49 and 4,645.96 is: 6,411.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.68 : 11,623.49 = 4,645.96 : x
  2. Step 2: Convert to fraction form
    8,422.68/11,623.49 = 4,645.96/x
  3. Step 3: Cross multiply
    8,422.68x = 11,623.49 × 4,645.96
  4. Step 4: Simplify right side
    8,422.68x = 54,002,269.60
  5. Step 5: Solve for x
    x = 54,002,269.60/8,422.68
  6. Step 6: Final answer
    x = 6,411.53

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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.