Home / 18,738.18-28,068.66-11,323.98

Finding the Fourth Proportional to 18,738.18, 28,068.66 and 11,323.98

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Solution

The fourth proportional to 18,738.18, 28,068.66 and 11,323.98 is: 16,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.18 : 28,068.66 = 11,323.98 : x
  2. Step 2: Convert to fraction form
    18,738.18/28,068.66 = 11,323.98/x
  3. Step 3: Cross multiply
    18,738.18x = 28,068.66 × 11,323.98
  4. Step 4: Simplify right side
    18,738.18x = 317,848,944.47
  5. Step 5: Solve for x
    x = 317,848,944.47/18,738.18
  6. Step 6: Final answer
    x = 16,962.64

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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.