Home / 8,426.20-11,634.32-5,443.80

Finding the Fourth Proportional to 8,426.20, 11,634.32 and 5,443.80

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Solution

The fourth proportional to 8,426.20, 11,634.32 and 5,443.80 is: 7,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.20 : 11,634.32 = 5,443.80 : x
  2. Step 2: Convert to fraction form
    8,426.20/11,634.32 = 5,443.80/x
  3. Step 3: Cross multiply
    8,426.20x = 11,634.32 × 5,443.80
  4. Step 4: Simplify right side
    8,426.20x = 63,334,911.22
  5. Step 5: Solve for x
    x = 63,334,911.22/8,426.20
  6. Step 6: Final answer
    x = 7,516.43

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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.