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Finding the Fourth Proportional to 9,692.87, 14,538.83 and 3,118.91

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Solution

The fourth proportional to 9,692.87, 14,538.83 and 3,118.91 is: 4,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,692.87 : 14,538.83 = 3,118.91 : x
  2. Step 2: Convert to fraction form
    9,692.87/14,538.83 = 3,118.91/x
  3. Step 3: Cross multiply
    9,692.87x = 14,538.83 × 3,118.91
  4. Step 4: Simplify right side
    9,692.87x = 45,345,213.99
  5. Step 5: Solve for x
    x = 45,345,213.99/9,692.87
  6. Step 6: Final answer
    x = 4,678.21

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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.