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Finding the Fourth Proportional to 12,295.35, 16,969.02 and 6,990.96

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Solution

The fourth proportional to 12,295.35, 16,969.02 and 6,990.96 is: 9,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.35 : 16,969.02 = 6,990.96 : x
  2. Step 2: Convert to fraction form
    12,295.35/16,969.02 = 6,990.96/x
  3. Step 3: Cross multiply
    12,295.35x = 16,969.02 × 6,990.96
  4. Step 4: Simplify right side
    12,295.35x = 118,629,740.06
  5. Step 5: Solve for x
    x = 118,629,740.06/12,295.35
  6. Step 6: Final answer
    x = 9,648.34

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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.