Home / 6,687.99-9,219.81-4,692.36

Finding the Fourth Proportional to 6,687.99, 9,219.81 and 4,692.36

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Solution

The fourth proportional to 6,687.99, 9,219.81 and 4,692.36 is: 6,468.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.99 : 9,219.81 = 4,692.36 : x
  2. Step 2: Convert to fraction form
    6,687.99/9,219.81 = 4,692.36/x
  3. Step 3: Cross multiply
    6,687.99x = 9,219.81 × 4,692.36
  4. Step 4: Simplify right side
    6,687.99x = 43,262,667.65
  5. Step 5: Solve for x
    x = 43,262,667.65/6,687.99
  6. Step 6: Final answer
    x = 6,468.71

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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.