Home / 12,382.10-18,575.40-4,059.80

Finding the Fourth Proportional to 12,382.10, 18,575.40 and 4,059.80

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Solution

The fourth proportional to 12,382.10, 18,575.40 and 4,059.80 is: 6,090.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.10 : 18,575.40 = 4,059.80 : x
  2. Step 2: Convert to fraction form
    12,382.10/18,575.40 = 4,059.80/x
  3. Step 3: Cross multiply
    12,382.10x = 18,575.40 × 4,059.80
  4. Step 4: Simplify right side
    12,382.10x = 75,412,408.92
  5. Step 5: Solve for x
    x = 75,412,408.92/12,382.10
  6. Step 6: Final answer
    x = 6,090.44

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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.