Home / 8,129.93-12,196.60-4,621.55

Finding the Fourth Proportional to 8,129.93, 12,196.60 and 4,621.55

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Solution

The fourth proportional to 8,129.93, 12,196.60 and 4,621.55 is: 6,933.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.93 : 12,196.60 = 4,621.55 : x
  2. Step 2: Convert to fraction form
    8,129.93/12,196.60 = 4,621.55/x
  3. Step 3: Cross multiply
    8,129.93x = 12,196.60 × 4,621.55
  4. Step 4: Simplify right side
    8,129.93x = 56,367,215.67
  5. Step 5: Solve for x
    x = 56,367,215.67/8,129.93
  6. Step 6: Final answer
    x = 6,933.29

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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.