Home / 11,581.40-15,982.43-6,800.10

Finding the Fourth Proportional to 11,581.40, 15,982.43 and 6,800.10

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Solution

The fourth proportional to 11,581.40, 15,982.43 and 6,800.10 is: 9,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.40 : 15,982.43 = 6,800.10 : x
  2. Step 2: Convert to fraction form
    11,581.40/15,982.43 = 6,800.10/x
  3. Step 3: Cross multiply
    11,581.40x = 15,982.43 × 6,800.10
  4. Step 4: Simplify right side
    11,581.40x = 108,682,088.24
  5. Step 5: Solve for x
    x = 108,682,088.24/11,581.40
  6. Step 6: Final answer
    x = 9,384.20

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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.