Home / 8,321.22-12,484.53-3,127.50

Finding the Fourth Proportional to 8,321.22, 12,484.53 and 3,127.50

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Solution

The fourth proportional to 8,321.22, 12,484.53 and 3,127.50 is: 4,692.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.22 : 12,484.53 = 3,127.50 : x
  2. Step 2: Convert to fraction form
    8,321.22/12,484.53 = 3,127.50/x
  3. Step 3: Cross multiply
    8,321.22x = 12,484.53 × 3,127.50
  4. Step 4: Simplify right side
    8,321.22x = 39,045,367.58
  5. Step 5: Solve for x
    x = 39,045,367.58/8,321.22
  6. Step 6: Final answer
    x = 4,692.26

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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.