Home / 12,380.22-18,575.80-4,999.10

Finding the Fourth Proportional to 12,380.22, 18,575.80 and 4,999.10

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Solution

The fourth proportional to 12,380.22, 18,575.80 and 4,999.10 is: 7,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.22 : 18,575.80 = 4,999.10 : x
  2. Step 2: Convert to fraction form
    12,380.22/18,575.80 = 4,999.10/x
  3. Step 3: Cross multiply
    12,380.22x = 18,575.80 × 4,999.10
  4. Step 4: Simplify right side
    12,380.22x = 92,862,241.59
  5. Step 5: Solve for x
    x = 92,862,241.59/12,380.22
  6. Step 6: Final answer
    x = 7,500.85

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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.