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Finding the Fourth Proportional to 6,883.90, 9,485.04 and 6,317.74

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Solution

The fourth proportional to 6,883.90, 9,485.04 and 6,317.74 is: 8,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,883.90 : 9,485.04 = 6,317.74 : x
  2. Step 2: Convert to fraction form
    6,883.90/9,485.04 = 6,317.74/x
  3. Step 3: Cross multiply
    6,883.90x = 9,485.04 × 6,317.74
  4. Step 4: Simplify right side
    6,883.90x = 59,924,016.61
  5. Step 5: Solve for x
    x = 59,924,016.61/6,883.90
  6. Step 6: Final answer
    x = 8,704.95

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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.