Home / 6,771.50-10,157.18-5,138.08

Finding the Fourth Proportional to 6,771.50, 10,157.18 and 5,138.08

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Solution

The fourth proportional to 6,771.50, 10,157.18 and 5,138.08 is: 7,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,771.50 : 10,157.18 = 5,138.08 : x
  2. Step 2: Convert to fraction form
    6,771.50/10,157.18 = 5,138.08/x
  3. Step 3: Cross multiply
    6,771.50x = 10,157.18 × 5,138.08
  4. Step 4: Simplify right side
    6,771.50x = 52,188,403.41
  5. Step 5: Solve for x
    x = 52,188,403.41/6,771.50
  6. Step 6: Final answer
    x = 7,707.07

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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.