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Finding the Fourth Proportional to 8,008.40, 12,012.60 and 4,546.64

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Solution

The fourth proportional to 8,008.40, 12,012.60 and 4,546.64 is: 6,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.40 : 12,012.60 = 4,546.64 : x
  2. Step 2: Convert to fraction form
    8,008.40/12,012.60 = 4,546.64/x
  3. Step 3: Cross multiply
    8,008.40x = 12,012.60 × 4,546.64
  4. Step 4: Simplify right side
    8,008.40x = 54,616,967.66
  5. Step 5: Solve for x
    x = 54,616,967.66/8,008.40
  6. Step 6: Final answer
    x = 6,819.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.