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Finding the Fourth Proportional to 6,817.36, 9,394.53 and 4,455.40

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Solution

The fourth proportional to 6,817.36, 9,394.53 and 4,455.40 is: 6,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,817.36 : 9,394.53 = 4,455.40 : x
  2. Step 2: Convert to fraction form
    6,817.36/9,394.53 = 4,455.40/x
  3. Step 3: Cross multiply
    6,817.36x = 9,394.53 × 4,455.40
  4. Step 4: Simplify right side
    6,817.36x = 41,856,388.96
  5. Step 5: Solve for x
    x = 41,856,388.96/6,817.36
  6. Step 6: Final answer
    x = 6,139.68

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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.