Home / 8,422.82-11,623.56-4,646.12

Finding the Fourth Proportional to 8,422.82, 11,623.56 and 4,646.12

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Solution

The fourth proportional to 8,422.82, 11,623.56 and 4,646.12 is: 6,411.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.82 : 11,623.56 = 4,646.12 : x
  2. Step 2: Convert to fraction form
    8,422.82/11,623.56 = 4,646.12/x
  3. Step 3: Cross multiply
    8,422.82x = 11,623.56 × 4,646.12
  4. Step 4: Simplify right side
    8,422.82x = 54,004,454.59
  5. Step 5: Solve for x
    x = 54,004,454.59/8,422.82
  6. Step 6: Final answer
    x = 6,411.68

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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.