Home / 8,375.12-12,562.95-4,212.86

Finding the Fourth Proportional to 8,375.12, 12,562.95 and 4,212.86

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Solution

The fourth proportional to 8,375.12, 12,562.95 and 4,212.86 is: 6,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.12 : 12,562.95 = 4,212.86 : x
  2. Step 2: Convert to fraction form
    8,375.12/12,562.95 = 4,212.86/x
  3. Step 3: Cross multiply
    8,375.12x = 12,562.95 × 4,212.86
  4. Step 4: Simplify right side
    8,375.12x = 52,925,886.72
  5. Step 5: Solve for x
    x = 52,925,886.72/8,375.12
  6. Step 6: Final answer
    x = 6,319.42

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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.