Home / 8,077.50-12,121.74-4,380.96

Finding the Fourth Proportional to 8,077.50, 12,121.74 and 4,380.96

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Solution

The fourth proportional to 8,077.50, 12,121.74 and 4,380.96 is: 6,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.50 : 12,121.74 = 4,380.96 : x
  2. Step 2: Convert to fraction form
    8,077.50/12,121.74 = 4,380.96/x
  3. Step 3: Cross multiply
    8,077.50x = 12,121.74 × 4,380.96
  4. Step 4: Simplify right side
    8,077.50x = 53,104,858.07
  5. Step 5: Solve for x
    x = 53,104,858.07/8,077.50
  6. Step 6: Final answer
    x = 6,574.42

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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.