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Finding the Fourth Proportional to 8,453.36, 12,671.40 and 2,905.04

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Solution

The fourth proportional to 8,453.36, 12,671.40 and 2,905.04 is: 4,354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.36 : 12,671.40 = 2,905.04 : x
  2. Step 2: Convert to fraction form
    8,453.36/12,671.40 = 2,905.04/x
  3. Step 3: Cross multiply
    8,453.36x = 12,671.40 × 2,905.04
  4. Step 4: Simplify right side
    8,453.36x = 36,810,923.86
  5. Step 5: Solve for x
    x = 36,810,923.86/8,453.36
  6. Step 6: Final answer
    x = 4,354.59

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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.