Home / 8,431.36-11,634.70-4,654.54

Finding the Fourth Proportional to 8,431.36, 11,634.70 and 4,654.54

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Solution

The fourth proportional to 8,431.36, 11,634.70 and 4,654.54 is: 6,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.36 : 11,634.70 = 4,654.54 : x
  2. Step 2: Convert to fraction form
    8,431.36/11,634.70 = 4,654.54/x
  3. Step 3: Cross multiply
    8,431.36x = 11,634.70 × 4,654.54
  4. Step 4: Simplify right side
    8,431.36x = 54,154,176.54
  5. Step 5: Solve for x
    x = 54,154,176.54/8,431.36
  6. Step 6: Final answer
    x = 6,422.95

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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.