Home / 12,472.79-17,212.42-6,883.75

Finding the Fourth Proportional to 12,472.79, 17,212.42 and 6,883.75

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Solution

The fourth proportional to 12,472.79, 17,212.42 and 6,883.75 is: 9,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.79 : 17,212.42 = 6,883.75 : x
  2. Step 2: Convert to fraction form
    12,472.79/17,212.42 = 6,883.75/x
  3. Step 3: Cross multiply
    12,472.79x = 17,212.42 × 6,883.75
  4. Step 4: Simplify right side
    12,472.79x = 118,485,961.76
  5. Step 5: Solve for x
    x = 118,485,961.76/12,472.79
  6. Step 6: Final answer
    x = 9,499.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.