Home / 14,090.81-19,401.05-11,961.92

Finding the Fourth Proportional to 14,090.81, 19,401.05 and 11,961.92

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Solution

The fourth proportional to 14,090.81, 19,401.05 and 11,961.92 is: 16,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.81 : 19,401.05 = 11,961.92 : x
  2. Step 2: Convert to fraction form
    14,090.81/19,401.05 = 11,961.92/x
  3. Step 3: Cross multiply
    14,090.81x = 19,401.05 × 11,961.92
  4. Step 4: Simplify right side
    14,090.81x = 232,073,808.02
  5. Step 5: Solve for x
    x = 232,073,808.02/14,090.81
  6. Step 6: Final answer
    x = 16,469.88

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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.