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Finding the Fourth Proportional to 12,671.51, 19,009.26 and 5,653.98

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Solution

The fourth proportional to 12,671.51, 19,009.26 and 5,653.98 is: 8,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.51 : 19,009.26 = 5,653.98 : x
  2. Step 2: Convert to fraction form
    12,671.51/19,009.26 = 5,653.98/x
  3. Step 3: Cross multiply
    12,671.51x = 19,009.26 × 5,653.98
  4. Step 4: Simplify right side
    12,671.51x = 107,477,975.85
  5. Step 5: Solve for x
    x = 107,477,975.85/12,671.51
  6. Step 6: Final answer
    x = 8,481.86

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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.