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Finding the Fourth Proportional to 16,676.40, 25,017.40 and 4,990.80

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Solution

The fourth proportional to 16,676.40, 25,017.40 and 4,990.80 is: 7,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,676.40 : 25,017.40 = 4,990.80 : x
  2. Step 2: Convert to fraction form
    16,676.40/25,017.40 = 4,990.80/x
  3. Step 3: Cross multiply
    16,676.40x = 25,017.40 × 4,990.80
  4. Step 4: Simplify right side
    16,676.40x = 124,856,839.92
  5. Step 5: Solve for x
    x = 124,856,839.92/16,676.40
  6. Step 6: Final answer
    x = 7,487.04

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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.