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Finding the Fourth Proportional to 8,969.84, 12,379.33 and 6,841.46

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Solution

The fourth proportional to 8,969.84, 12,379.33 and 6,841.46 is: 9,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.84 : 12,379.33 = 6,841.46 : x
  2. Step 2: Convert to fraction form
    8,969.84/12,379.33 = 6,841.46/x
  3. Step 3: Cross multiply
    8,969.84x = 12,379.33 × 6,841.46
  4. Step 4: Simplify right side
    8,969.84x = 84,692,730.52
  5. Step 5: Solve for x
    x = 84,692,730.52/8,969.84
  6. Step 6: Final answer
    x = 9,441.95

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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.