Home / 8,157.45-12,234.33-3,772.50

Finding the Fourth Proportional to 8,157.45, 12,234.33 and 3,772.50

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Solution

The fourth proportional to 8,157.45, 12,234.33 and 3,772.50 is: 5,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.45 : 12,234.33 = 3,772.50 : x
  2. Step 2: Convert to fraction form
    8,157.45/12,234.33 = 3,772.50/x
  3. Step 3: Cross multiply
    8,157.45x = 12,234.33 × 3,772.50
  4. Step 4: Simplify right side
    8,157.45x = 46,154,009.93
  5. Step 5: Solve for x
    x = 46,154,009.93/8,157.45
  6. Step 6: Final answer
    x = 5,657.90

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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.