Home / 8,581.40-12,847.84-5,453.66

Finding the Fourth Proportional to 8,581.40, 12,847.84 and 5,453.66

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Solution

The fourth proportional to 8,581.40, 12,847.84 and 5,453.66 is: 8,165.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.40 : 12,847.84 = 5,453.66 : x
  2. Step 2: Convert to fraction form
    8,581.40/12,847.84 = 5,453.66/x
  3. Step 3: Cross multiply
    8,581.40x = 12,847.84 × 5,453.66
  4. Step 4: Simplify right side
    8,581.40x = 70,067,673.22
  5. Step 5: Solve for x
    x = 70,067,673.22/8,581.40
  6. Step 6: Final answer
    x = 8,165.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.