Home / 12,530.84-17,286.50-8,283.56

Finding the Fourth Proportional to 12,530.84, 17,286.50 and 8,283.56

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Solution

The fourth proportional to 12,530.84, 17,286.50 and 8,283.56 is: 11,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.84 : 17,286.50 = 8,283.56 : x
  2. Step 2: Convert to fraction form
    12,530.84/17,286.50 = 8,283.56/x
  3. Step 3: Cross multiply
    12,530.84x = 17,286.50 × 8,283.56
  4. Step 4: Simplify right side
    12,530.84x = 143,193,759.94
  5. Step 5: Solve for x
    x = 143,193,759.94/12,530.84
  6. Step 6: Final answer
    x = 11,427.31

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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.