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Finding the Fourth Proportional to 8,968.81, 12,394.03 and 6,726.79

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Solution

The fourth proportional to 8,968.81, 12,394.03 and 6,726.79 is: 9,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.81 : 12,394.03 = 6,726.79 : x
  2. Step 2: Convert to fraction form
    8,968.81/12,394.03 = 6,726.79/x
  3. Step 3: Cross multiply
    8,968.81x = 12,394.03 × 6,726.79
  4. Step 4: Simplify right side
    8,968.81x = 83,372,037.40
  5. Step 5: Solve for x
    x = 83,372,037.40/8,968.81
  6. Step 6: Final answer
    x = 9,295.78

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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.