Home / 16,830.40-25,245.60-12,467.20

Finding the Fourth Proportional to 16,830.40, 25,245.60 and 12,467.20

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Solution

The fourth proportional to 16,830.40, 25,245.60 and 12,467.20 is: 18,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.40 : 25,245.60 = 12,467.20 : x
  2. Step 2: Convert to fraction form
    16,830.40/25,245.60 = 12,467.20/x
  3. Step 3: Cross multiply
    16,830.40x = 25,245.60 × 12,467.20
  4. Step 4: Simplify right side
    16,830.40x = 314,741,944.32
  5. Step 5: Solve for x
    x = 314,741,944.32/16,830.40
  6. Step 6: Final answer
    x = 18,700.80

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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.