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Finding the Fourth Proportional to 8,452.88, 12,668.16 and 6,120.72

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Solution

The fourth proportional to 8,452.88, 12,668.16 and 6,120.72 is: 9,173.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.88 : 12,668.16 = 6,120.72 : x
  2. Step 2: Convert to fraction form
    8,452.88/12,668.16 = 6,120.72/x
  3. Step 3: Cross multiply
    8,452.88x = 12,668.16 × 6,120.72
  4. Step 4: Simplify right side
    8,452.88x = 77,538,260.28
  5. Step 5: Solve for x
    x = 77,538,260.28/8,452.88
  6. Step 6: Final answer
    x = 9,173.00

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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.