Home / 14,489.80-19,970.46-11,956.96

Finding the Fourth Proportional to 14,489.80, 19,970.46 and 11,956.96

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Solution

The fourth proportional to 14,489.80, 19,970.46 and 11,956.96 is: 16,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.80 : 19,970.46 = 11,956.96 : x
  2. Step 2: Convert to fraction form
    14,489.80/19,970.46 = 11,956.96/x
  3. Step 3: Cross multiply
    14,489.80x = 19,970.46 × 11,956.96
  4. Step 4: Simplify right side
    14,489.80x = 238,785,991.40
  5. Step 5: Solve for x
    x = 238,785,991.40/14,489.80
  6. Step 6: Final answer
    x = 16,479.59

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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.