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Finding the Fourth Proportional to 8,681.67, 13,007.79 and 6,203.88

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Solution

The fourth proportional to 8,681.67, 13,007.79 and 6,203.88 is: 9,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.67 : 13,007.79 = 6,203.88 : x
  2. Step 2: Convert to fraction form
    8,681.67/13,007.79 = 6,203.88/x
  3. Step 3: Cross multiply
    8,681.67x = 13,007.79 × 6,203.88
  4. Step 4: Simplify right side
    8,681.67x = 80,698,768.23
  5. Step 5: Solve for x
    x = 80,698,768.23/8,681.67
  6. Step 6: Final answer
    x = 9,295.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.