Home / 8,285.08-12,430.32-3,902.98

Finding the Fourth Proportional to 8,285.08, 12,430.32 and 3,902.98

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Solution

The fourth proportional to 8,285.08, 12,430.32 and 3,902.98 is: 5,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.08 : 12,430.32 = 3,902.98 : x
  2. Step 2: Convert to fraction form
    8,285.08/12,430.32 = 3,902.98/x
  3. Step 3: Cross multiply
    8,285.08x = 12,430.32 × 3,902.98
  4. Step 4: Simplify right side
    8,285.08x = 48,515,290.35
  5. Step 5: Solve for x
    x = 48,515,290.35/8,285.08
  6. Step 6: Final answer
    x = 5,855.74

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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.