Home / 12,968.56-19,455.54-4,202.79

Finding the Fourth Proportional to 12,968.56, 19,455.54 and 4,202.79

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Solution

The fourth proportional to 12,968.56, 19,455.54 and 4,202.79 is: 6,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.56 : 19,455.54 = 4,202.79 : x
  2. Step 2: Convert to fraction form
    12,968.56/19,455.54 = 4,202.79/x
  3. Step 3: Cross multiply
    12,968.56x = 19,455.54 × 4,202.79
  4. Step 4: Simplify right side
    12,968.56x = 81,767,548.96
  5. Step 5: Solve for x
    x = 81,767,548.96/12,968.56
  6. Step 6: Final answer
    x = 6,305.06

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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.