Home / 12,914.56-19,373.19-4,147.39

Finding the Fourth Proportional to 12,914.56, 19,373.19 and 4,147.39

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Solution

The fourth proportional to 12,914.56, 19,373.19 and 4,147.39 is: 6,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.56 : 19,373.19 = 4,147.39 : x
  2. Step 2: Convert to fraction form
    12,914.56/19,373.19 = 4,147.39/x
  3. Step 3: Cross multiply
    12,914.56x = 19,373.19 × 4,147.39
  4. Step 4: Simplify right side
    12,914.56x = 80,348,174.47
  5. Step 5: Solve for x
    x = 80,348,174.47/12,914.56
  6. Step 6: Final answer
    x = 6,221.52

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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.