Home / 18,764.14-28,137.93-9,997.18

Finding the Fourth Proportional to 18,764.14, 28,137.93 and 9,997.18

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Solution

The fourth proportional to 18,764.14, 28,137.93 and 9,997.18 is: 14,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.14 : 28,137.93 = 9,997.18 : x
  2. Step 2: Convert to fraction form
    18,764.14/28,137.93 = 9,997.18/x
  3. Step 3: Cross multiply
    18,764.14x = 28,137.93 × 9,997.18
  4. Step 4: Simplify right side
    18,764.14x = 281,299,951.04
  5. Step 5: Solve for x
    x = 281,299,951.04/18,764.14
  6. Step 6: Final answer
    x = 14,991.36

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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.