Home / 6,431.20-9,646.80-6,301.60

Finding the Fourth Proportional to 6,431.20, 9,646.80 and 6,301.60

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Solution

The fourth proportional to 6,431.20, 9,646.80 and 6,301.60 is: 9,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.20 : 9,646.80 = 6,301.60 : x
  2. Step 2: Convert to fraction form
    6,431.20/9,646.80 = 6,301.60/x
  3. Step 3: Cross multiply
    6,431.20x = 9,646.80 × 6,301.60
  4. Step 4: Simplify right side
    6,431.20x = 60,790,274.88
  5. Step 5: Solve for x
    x = 60,790,274.88/6,431.20
  6. Step 6: Final answer
    x = 9,452.40

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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.