Home / 11,825.13-16,321.53-7,108.50

Finding the Fourth Proportional to 11,825.13, 16,321.53 and 7,108.50

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Solution

The fourth proportional to 11,825.13, 16,321.53 and 7,108.50 is: 9,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.13 : 16,321.53 = 7,108.50 : x
  2. Step 2: Convert to fraction form
    11,825.13/16,321.53 = 7,108.50/x
  3. Step 3: Cross multiply
    11,825.13x = 16,321.53 × 7,108.50
  4. Step 4: Simplify right side
    11,825.13x = 116,021,560.46
  5. Step 5: Solve for x
    x = 116,021,560.46/11,825.13
  6. Step 6: Final answer
    x = 9,811.44

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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.