Home / 12,768.72-19,153.05-4,003.62

Finding the Fourth Proportional to 12,768.72, 19,153.05 and 4,003.62

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Solution

The fourth proportional to 12,768.72, 19,153.05 and 4,003.62 is: 6,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.72 : 19,153.05 = 4,003.62 : x
  2. Step 2: Convert to fraction form
    12,768.72/19,153.05 = 4,003.62/x
  3. Step 3: Cross multiply
    12,768.72x = 19,153.05 × 4,003.62
  4. Step 4: Simplify right side
    12,768.72x = 76,681,534.04
  5. Step 5: Solve for x
    x = 76,681,534.04/12,768.72
  6. Step 6: Final answer
    x = 6,005.42

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Half scale
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Double scale
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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.