Home / 14,270.96-21,406.28-5,499.72

Finding the Fourth Proportional to 14,270.96, 21,406.28 and 5,499.72

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Solution

The fourth proportional to 14,270.96, 21,406.28 and 5,499.72 is: 8,249.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270.96 : 21,406.28 = 5,499.72 : x
  2. Step 2: Convert to fraction form
    14,270.96/21,406.28 = 5,499.72/x
  3. Step 3: Cross multiply
    14,270.96x = 21,406.28 × 5,499.72
  4. Step 4: Simplify right side
    14,270.96x = 117,728,546.24
  5. Step 5: Solve for x
    x = 117,728,546.24/14,270.96
  6. Step 6: Final answer
    x = 8,249.52

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.