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Finding the Fourth Proportional to 8,416.80, 12,625.80 and 2,573.40

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Solution

The fourth proportional to 8,416.80, 12,625.80 and 2,573.40 is: 3,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.80 : 12,625.80 = 2,573.40 : x
  2. Step 2: Convert to fraction form
    8,416.80/12,625.80 = 2,573.40/x
  3. Step 3: Cross multiply
    8,416.80x = 12,625.80 × 2,573.40
  4. Step 4: Simplify right side
    8,416.80x = 32,491,233.72
  5. Step 5: Solve for x
    x = 32,491,233.72/8,416.80
  6. Step 6: Final answer
    x = 3,860.28

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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.