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Finding the Fourth Proportional to 12,692.68, 19,043.04 and 6,119.32

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Solution

The fourth proportional to 12,692.68, 19,043.04 and 6,119.32 is: 9,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.68 : 19,043.04 = 6,119.32 : x
  2. Step 2: Convert to fraction form
    12,692.68/19,043.04 = 6,119.32/x
  3. Step 3: Cross multiply
    12,692.68x = 19,043.04 × 6,119.32
  4. Step 4: Simplify right side
    12,692.68x = 116,530,455.53
  5. Step 5: Solve for x
    x = 116,530,455.53/12,692.68
  6. Step 6: Final answer
    x = 9,180.92

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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.