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Finding the Fourth Proportional to 12,230.68, 16,881.36 and 6,928.62

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Solution

The fourth proportional to 12,230.68, 16,881.36 and 6,928.62 is: 9,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.68 : 16,881.36 = 6,928.62 : x
  2. Step 2: Convert to fraction form
    12,230.68/16,881.36 = 6,928.62/x
  3. Step 3: Cross multiply
    12,230.68x = 16,881.36 × 6,928.62
  4. Step 4: Simplify right side
    12,230.68x = 116,964,528.52
  5. Step 5: Solve for x
    x = 116,964,528.52/12,230.68
  6. Step 6: Final answer
    x = 9,563.21

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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.