Home / 14,972.82-20,660.84-8,683.98

Finding the Fourth Proportional to 14,972.82, 20,660.84 and 8,683.98

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Solution

The fourth proportional to 14,972.82, 20,660.84 and 8,683.98 is: 11,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,972.82 : 20,660.84 = 8,683.98 : x
  2. Step 2: Convert to fraction form
    14,972.82/20,660.84 = 8,683.98/x
  3. Step 3: Cross multiply
    14,972.82x = 20,660.84 × 8,683.98
  4. Step 4: Simplify right side
    14,972.82x = 179,418,321.34
  5. Step 5: Solve for x
    x = 179,418,321.34/14,972.82
  6. Step 6: Final answer
    x = 11,982.93

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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.