Home / 9,207.20-13,812.60-3,942.20

Finding the Fourth Proportional to 9,207.20, 13,812.60 and 3,942.20

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Solution

The fourth proportional to 9,207.20, 13,812.60 and 3,942.20 is: 5,914.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,207.20 : 13,812.60 = 3,942.20 : x
  2. Step 2: Convert to fraction form
    9,207.20/13,812.60 = 3,942.20/x
  3. Step 3: Cross multiply
    9,207.20x = 13,812.60 × 3,942.20
  4. Step 4: Simplify right side
    9,207.20x = 54,452,031.72
  5. Step 5: Solve for x
    x = 54,452,031.72/9,207.20
  6. Step 6: Final answer
    x = 5,914.07

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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.