Home / 12,829.73-17,704.85-7,164.57

Finding the Fourth Proportional to 12,829.73, 17,704.85 and 7,164.57

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Solution

The fourth proportional to 12,829.73, 17,704.85 and 7,164.57 is: 9,887.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.73 : 17,704.85 = 7,164.57 : x
  2. Step 2: Convert to fraction form
    12,829.73/17,704.85 = 7,164.57/x
  3. Step 3: Cross multiply
    12,829.73x = 17,704.85 × 7,164.57
  4. Step 4: Simplify right side
    12,829.73x = 126,847,667.73
  5. Step 5: Solve for x
    x = 126,847,667.73/12,829.73
  6. Step 6: Final answer
    x = 9,887.01

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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.