Home / 12,283.44-18,420.24-4,490.40

Finding the Fourth Proportional to 12,283.44, 18,420.24 and 4,490.40

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Solution

The fourth proportional to 12,283.44, 18,420.24 and 4,490.40 is: 6,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.44 : 18,420.24 = 4,490.40 : x
  2. Step 2: Convert to fraction form
    12,283.44/18,420.24 = 4,490.40/x
  3. Step 3: Cross multiply
    12,283.44x = 18,420.24 × 4,490.40
  4. Step 4: Simplify right side
    12,283.44x = 82,714,245.70
  5. Step 5: Solve for x
    x = 82,714,245.70/12,283.44
  6. Step 6: Final answer
    x = 6,733.80

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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.