Home / 12,489.04-17,229.06-7,704.98

Finding the Fourth Proportional to 12,489.04, 17,229.06 and 7,704.98

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Solution

The fourth proportional to 12,489.04, 17,229.06 and 7,704.98 is: 10,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489.04 : 17,229.06 = 7,704.98 : x
  2. Step 2: Convert to fraction form
    12,489.04/17,229.06 = 7,704.98/x
  3. Step 3: Cross multiply
    12,489.04x = 17,229.06 × 7,704.98
  4. Step 4: Simplify right side
    12,489.04x = 132,749,562.72
  5. Step 5: Solve for x
    x = 132,749,562.72/12,489.04
  6. Step 6: Final answer
    x = 10,629.28

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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.