Home / 8,431.62-11,635.14-4,654.69

Finding the Fourth Proportional to 8,431.62, 11,635.14 and 4,654.69

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Solution

The fourth proportional to 8,431.62, 11,635.14 and 4,654.69 is: 6,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.62 : 11,635.14 = 4,654.69 : x
  2. Step 2: Convert to fraction form
    8,431.62/11,635.14 = 4,654.69/x
  3. Step 3: Cross multiply
    8,431.62x = 11,635.14 × 4,654.69
  4. Step 4: Simplify right side
    8,431.62x = 54,157,958.17
  5. Step 5: Solve for x
    x = 54,157,958.17/8,431.62
  6. Step 6: Final answer
    x = 6,423.20

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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.