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Finding the Fourth Proportional to 12,134.89, 16,744.35 and 6,829.39

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Solution

The fourth proportional to 12,134.89, 16,744.35 and 6,829.39 is: 9,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.89 : 16,744.35 = 6,829.39 : x
  2. Step 2: Convert to fraction form
    12,134.89/16,744.35 = 6,829.39/x
  3. Step 3: Cross multiply
    12,134.89x = 16,744.35 × 6,829.39
  4. Step 4: Simplify right side
    12,134.89x = 114,353,696.45
  5. Step 5: Solve for x
    x = 114,353,696.45/12,134.89
  6. Step 6: Final answer
    x = 9,423.55

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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.