Home / 12,332.72-17,020.61-11,945.21

Finding the Fourth Proportional to 12,332.72, 17,020.61 and 11,945.21

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Solution

The fourth proportional to 12,332.72, 17,020.61 and 11,945.21 is: 16,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,332.72 : 17,020.61 = 11,945.21 : x
  2. Step 2: Convert to fraction form
    12,332.72/17,020.61 = 11,945.21/x
  3. Step 3: Cross multiply
    12,332.72x = 17,020.61 × 11,945.21
  4. Step 4: Simplify right side
    12,332.72x = 203,314,770.76
  5. Step 5: Solve for x
    x = 203,314,770.76/12,332.72
  6. Step 6: Final answer
    x = 16,485.80

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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.