Home / 7,121.83-10,692.47-4,783.36

Finding the Fourth Proportional to 7,121.83, 10,692.47 and 4,783.36

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Solution

The fourth proportional to 7,121.83, 10,692.47 and 4,783.36 is: 7,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.83 : 10,692.47 = 4,783.36 : x
  2. Step 2: Convert to fraction form
    7,121.83/10,692.47 = 4,783.36/x
  3. Step 3: Cross multiply
    7,121.83x = 10,692.47 × 4,783.36
  4. Step 4: Simplify right side
    7,121.83x = 51,145,933.30
  5. Step 5: Solve for x
    x = 51,145,933.30/7,121.83
  6. Step 6: Final answer
    x = 7,181.57

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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.