Home / 8,108.64-12,152.36-4,156.55

Finding the Fourth Proportional to 8,108.64, 12,152.36 and 4,156.55

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Solution

The fourth proportional to 8,108.64, 12,152.36 and 4,156.55 is: 6,229.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.64 : 12,152.36 = 4,156.55 : x
  2. Step 2: Convert to fraction form
    8,108.64/12,152.36 = 4,156.55/x
  3. Step 3: Cross multiply
    8,108.64x = 12,152.36 × 4,156.55
  4. Step 4: Simplify right side
    8,108.64x = 50,511,887.16
  5. Step 5: Solve for x
    x = 50,511,887.16/8,108.64
  6. Step 6: Final answer
    x = 6,229.39

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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.