Home / 8,431.10-11,634.71-4,654.27

Finding the Fourth Proportional to 8,431.10, 11,634.71 and 4,654.27

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Solution

The fourth proportional to 8,431.10, 11,634.71 and 4,654.27 is: 6,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.10 : 11,634.71 = 4,654.27 : x
  2. Step 2: Convert to fraction form
    8,431.10/11,634.71 = 4,654.27/x
  3. Step 3: Cross multiply
    8,431.10x = 11,634.71 × 4,654.27
  4. Step 4: Simplify right side
    8,431.10x = 54,151,081.71
  5. Step 5: Solve for x
    x = 54,151,081.71/8,431.10
  6. Step 6: Final answer
    x = 6,422.78

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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.