Home / 19,692.35-27,174.78-11,730.45

Finding the Fourth Proportional to 19,692.35, 27,174.78 and 11,730.45

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Solution

The fourth proportional to 19,692.35, 27,174.78 and 11,730.45 is: 16,187.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,692.35 : 27,174.78 = 11,730.45 : x
  2. Step 2: Convert to fraction form
    19,692.35/27,174.78 = 11,730.45/x
  3. Step 3: Cross multiply
    19,692.35x = 27,174.78 × 11,730.45
  4. Step 4: Simplify right side
    19,692.35x = 318,772,398.05
  5. Step 5: Solve for x
    x = 318,772,398.05/19,692.35
  6. Step 6: Final answer
    x = 16,187.63

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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.