Home / 12,171.04-16,787.20-11,764.48

Finding the Fourth Proportional to 12,171.04, 16,787.20 and 11,764.48

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Solution

The fourth proportional to 12,171.04, 16,787.20 and 11,764.48 is: 16,226.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.04 : 16,787.20 = 11,764.48 : x
  2. Step 2: Convert to fraction form
    12,171.04/16,787.20 = 11,764.48/x
  3. Step 3: Cross multiply
    12,171.04x = 16,787.20 × 11,764.48
  4. Step 4: Simplify right side
    12,171.04x = 197,492,678.66
  5. Step 5: Solve for x
    x = 197,492,678.66/12,171.04
  6. Step 6: Final answer
    x = 16,226.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.