Home / 8,422.73-11,628.77-7,536.99

Finding the Fourth Proportional to 8,422.73, 11,628.77 and 7,536.99

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Solution

The fourth proportional to 8,422.73, 11,628.77 and 7,536.99 is: 10,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.73 : 11,628.77 = 7,536.99 : x
  2. Step 2: Convert to fraction form
    8,422.73/11,628.77 = 7,536.99/x
  3. Step 3: Cross multiply
    8,422.73x = 11,628.77 × 7,536.99
  4. Step 4: Simplify right side
    8,422.73x = 87,645,923.20
  5. Step 5: Solve for x
    x = 87,645,923.20/8,422.73
  6. Step 6: Final answer
    x = 10,405.88

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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.