Home / 12,996.18-19,493.46-4,230.36

Finding the Fourth Proportional to 12,996.18, 19,493.46 and 4,230.36

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Solution

The fourth proportional to 12,996.18, 19,493.46 and 4,230.36 is: 6,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.18 : 19,493.46 = 4,230.36 : x
  2. Step 2: Convert to fraction form
    12,996.18/19,493.46 = 4,230.36/x
  3. Step 3: Cross multiply
    12,996.18x = 19,493.46 × 4,230.36
  4. Step 4: Simplify right side
    12,996.18x = 82,464,353.45
  5. Step 5: Solve for x
    x = 82,464,353.45/12,996.18
  6. Step 6: Final answer
    x = 6,345.28

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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.