Home / 12,939.35-19,409.01-4,174.26

Finding the Fourth Proportional to 12,939.35, 19,409.01 and 4,174.26

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Solution

The fourth proportional to 12,939.35, 19,409.01 and 4,174.26 is: 6,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.35 : 19,409.01 = 4,174.26 : x
  2. Step 2: Convert to fraction form
    12,939.35/19,409.01 = 4,174.26/x
  3. Step 3: Cross multiply
    12,939.35x = 19,409.01 × 4,174.26
  4. Step 4: Simplify right side
    12,939.35x = 81,018,254.08
  5. Step 5: Solve for x
    x = 81,018,254.08/12,939.35
  6. Step 6: Final answer
    x = 6,261.39

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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.