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Finding the Fourth Proportional to 12,671.62, 19,008.21 and 4,880.44

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Solution

The fourth proportional to 12,671.62, 19,008.21 and 4,880.44 is: 7,320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.62 : 19,008.21 = 4,880.44 : x
  2. Step 2: Convert to fraction form
    12,671.62/19,008.21 = 4,880.44/x
  3. Step 3: Cross multiply
    12,671.62x = 19,008.21 × 4,880.44
  4. Step 4: Simplify right side
    12,671.62x = 92,768,428.41
  5. Step 5: Solve for x
    x = 92,768,428.41/12,671.62
  6. Step 6: Final answer
    x = 7,320.96

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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.