Home / 7,960.20-11,918.40-4,056.80

Finding the Fourth Proportional to 7,960.20, 11,918.40 and 4,056.80

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Solution

The fourth proportional to 7,960.20, 11,918.40 and 4,056.80 is: 6,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.20 : 11,918.40 = 4,056.80 : x
  2. Step 2: Convert to fraction form
    7,960.20/11,918.40 = 4,056.80/x
  3. Step 3: Cross multiply
    7,960.20x = 11,918.40 × 4,056.80
  4. Step 4: Simplify right side
    7,960.20x = 48,350,565.12
  5. Step 5: Solve for x
    x = 48,350,565.12/7,960.20
  6. Step 6: Final answer
    x = 6,074.04

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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.