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Finding the Fourth Proportional to 16,775.21, 25,165.98 and 5,678.91

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Solution

The fourth proportional to 16,775.21, 25,165.98 and 5,678.91 is: 8,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.21 : 25,165.98 = 5,678.91 : x
  2. Step 2: Convert to fraction form
    16,775.21/25,165.98 = 5,678.91/x
  3. Step 3: Cross multiply
    16,775.21x = 25,165.98 × 5,678.91
  4. Step 4: Simplify right side
    16,775.21x = 142,915,335.48
  5. Step 5: Solve for x
    x = 142,915,335.48/16,775.21
  6. Step 6: Final answer
    x = 8,519.44

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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.