Home / 8,056.42-11,121.66-5,405.56

Finding the Fourth Proportional to 8,056.42, 11,121.66 and 5,405.56

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Solution

The fourth proportional to 8,056.42, 11,121.66 and 5,405.56 is: 7,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,056.42 : 11,121.66 = 5,405.56 : x
  2. Step 2: Convert to fraction form
    8,056.42/11,121.66 = 5,405.56/x
  3. Step 3: Cross multiply
    8,056.42x = 11,121.66 × 5,405.56
  4. Step 4: Simplify right side
    8,056.42x = 60,118,800.43
  5. Step 5: Solve for x
    x = 60,118,800.43/8,056.42
  6. Step 6: Final answer
    x = 7,462.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.