Home / 14,102.35-19,460.91-7,728.73

Finding the Fourth Proportional to 14,102.35, 19,460.91 and 7,728.73

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Solution

The fourth proportional to 14,102.35, 19,460.91 and 7,728.73 is: 10,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.35 : 19,460.91 = 7,728.73 : x
  2. Step 2: Convert to fraction form
    14,102.35/19,460.91 = 7,728.73/x
  3. Step 3: Cross multiply
    14,102.35x = 19,460.91 × 7,728.73
  4. Step 4: Simplify right side
    14,102.35x = 150,408,118.94
  5. Step 5: Solve for x
    x = 150,408,118.94/14,102.35
  6. Step 6: Final answer
    x = 10,665.46

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Half scale
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Double scale
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Similar ratio
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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.