Home / 12,190.11-16,822.29-6,884.82

Finding the Fourth Proportional to 12,190.11, 16,822.29 and 6,884.82

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Solution

The fourth proportional to 12,190.11, 16,822.29 and 6,884.82 is: 9,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.11 : 16,822.29 = 6,884.82 : x
  2. Step 2: Convert to fraction form
    12,190.11/16,822.29 = 6,884.82/x
  3. Step 3: Cross multiply
    12,190.11x = 16,822.29 × 6,884.82
  4. Step 4: Simplify right side
    12,190.11x = 115,818,438.64
  5. Step 5: Solve for x
    x = 115,818,438.64/12,190.11
  6. Step 6: Final answer
    x = 9,501.02

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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.