Home / 13,869.45-19,164.21-12,097.98

Finding the Fourth Proportional to 13,869.45, 19,164.21 and 12,097.98

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Solution

The fourth proportional to 13,869.45, 19,164.21 and 12,097.98 is: 16,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.45 : 19,164.21 = 12,097.98 : x
  2. Step 2: Convert to fraction form
    13,869.45/19,164.21 = 12,097.98/x
  3. Step 3: Cross multiply
    13,869.45x = 19,164.21 × 12,097.98
  4. Step 4: Simplify right side
    13,869.45x = 231,848,229.30
  5. Step 5: Solve for x
    x = 231,848,229.30/13,869.45
  6. Step 6: Final answer
    x = 16,716.47

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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.