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Finding the Fourth Proportional to 12,692.62, 19,040.99 and 3,925.50

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Solution

The fourth proportional to 12,692.62, 19,040.99 and 3,925.50 is: 5,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.62 : 19,040.99 = 3,925.50 : x
  2. Step 2: Convert to fraction form
    12,692.62/19,040.99 = 3,925.50/x
  3. Step 3: Cross multiply
    12,692.62x = 19,040.99 × 3,925.50
  4. Step 4: Simplify right side
    12,692.62x = 74,745,406.25
  5. Step 5: Solve for x
    x = 74,745,406.25/12,692.62
  6. Step 6: Final answer
    x = 5,888.89

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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.