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Finding the Fourth Proportional to 8,425.88, 11,627.71 and 4,699.88

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Solution

The fourth proportional to 8,425.88, 11,627.71 and 4,699.88 is: 6,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.88 : 11,627.71 = 4,699.88 : x
  2. Step 2: Convert to fraction form
    8,425.88/11,627.71 = 4,699.88/x
  3. Step 3: Cross multiply
    8,425.88x = 11,627.71 × 4,699.88
  4. Step 4: Simplify right side
    8,425.88x = 54,648,771.79
  5. Step 5: Solve for x
    x = 54,648,771.79/8,425.88
  6. Step 6: Final answer
    x = 6,485.83

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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.