Home / 19,692.72-27,167.64-12,134.64

Finding the Fourth Proportional to 19,692.72, 27,167.64 and 12,134.64

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Solution

The fourth proportional to 19,692.72, 27,167.64 and 12,134.64 is: 16,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,692.72 : 27,167.64 = 12,134.64 : x
  2. Step 2: Convert to fraction form
    19,692.72/27,167.64 = 12,134.64/x
  3. Step 3: Cross multiply
    19,692.72x = 27,167.64 × 12,134.64
  4. Step 4: Simplify right side
    19,692.72x = 329,669,531.05
  5. Step 5: Solve for x
    x = 329,669,531.05/19,692.72
  6. Step 6: Final answer
    x = 16,740.68

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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.