Home / 16,451.45-24,671.10-8,128.70

Finding the Fourth Proportional to 16,451.45, 24,671.10 and 8,128.70

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Solution

The fourth proportional to 16,451.45, 24,671.10 and 8,128.70 is: 12,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,451.45 : 24,671.10 = 8,128.70 : x
  2. Step 2: Convert to fraction form
    16,451.45/24,671.10 = 8,128.70/x
  3. Step 3: Cross multiply
    16,451.45x = 24,671.10 × 8,128.70
  4. Step 4: Simplify right side
    16,451.45x = 200,543,970.57
  5. Step 5: Solve for x
    x = 200,543,970.57/16,451.45
  6. Step 6: Final answer
    x = 12,190.05

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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.