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Finding the Fourth Proportional to 12,029.62, 16,600.82 and 6,724.40

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Solution

The fourth proportional to 12,029.62, 16,600.82 and 6,724.40 is: 9,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,029.62 : 16,600.82 = 6,724.40 : x
  2. Step 2: Convert to fraction form
    12,029.62/16,600.82 = 6,724.40/x
  3. Step 3: Cross multiply
    12,029.62x = 16,600.82 × 6,724.40
  4. Step 4: Simplify right side
    12,029.62x = 111,630,554.01
  5. Step 5: Solve for x
    x = 111,630,554.01/12,029.62
  6. Step 6: Final answer
    x = 9,279.64

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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.