Home / 8,431.25-11,635.17-4,705.25

Finding the Fourth Proportional to 8,431.25, 11,635.17 and 4,705.25

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Solution

The fourth proportional to 8,431.25, 11,635.17 and 4,705.25 is: 6,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.25 : 11,635.17 = 4,705.25 : x
  2. Step 2: Convert to fraction form
    8,431.25/11,635.17 = 4,705.25/x
  3. Step 3: Cross multiply
    8,431.25x = 11,635.17 × 4,705.25
  4. Step 4: Simplify right side
    8,431.25x = 54,746,383.64
  5. Step 5: Solve for x
    x = 54,746,383.64/8,431.25
  6. Step 6: Final answer
    x = 6,493.27

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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.