Home / 12,493.75-18,734.25-4,170.77

Finding the Fourth Proportional to 12,493.75, 18,734.25 and 4,170.77

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Solution

The fourth proportional to 12,493.75, 18,734.25 and 4,170.77 is: 6,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.75 : 18,734.25 = 4,170.77 : x
  2. Step 2: Convert to fraction form
    12,493.75/18,734.25 = 4,170.77/x
  3. Step 3: Cross multiply
    12,493.75x = 18,734.25 × 4,170.77
  4. Step 4: Simplify right side
    12,493.75x = 78,136,247.87
  5. Step 5: Solve for x
    x = 78,136,247.87/12,493.75
  6. Step 6: Final answer
    x = 6,254.03

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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.