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Finding the Fourth Proportional to 16,447.60, 24,671.40 and 8,128.90

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Solution

The fourth proportional to 16,447.60, 24,671.40 and 8,128.90 is: 12,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,447.60 : 24,671.40 = 8,128.90 : x
  2. Step 2: Convert to fraction form
    16,447.60/24,671.40 = 8,128.90/x
  3. Step 3: Cross multiply
    16,447.60x = 24,671.40 × 8,128.90
  4. Step 4: Simplify right side
    16,447.60x = 200,551,343.46
  5. Step 5: Solve for x
    x = 200,551,343.46/16,447.60
  6. Step 6: Final answer
    x = 12,193.35

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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.