Home / 13,682.40-18,883.32-8,377.92

Finding the Fourth Proportional to 13,682.40, 18,883.32 and 8,377.92

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Solution

The fourth proportional to 13,682.40, 18,883.32 and 8,377.92 is: 11,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.40 : 18,883.32 = 8,377.92 : x
  2. Step 2: Convert to fraction form
    13,682.40/18,883.32 = 8,377.92/x
  3. Step 3: Cross multiply
    13,682.40x = 18,883.32 × 8,377.92
  4. Step 4: Simplify right side
    13,682.40x = 158,202,944.29
  5. Step 5: Solve for x
    x = 158,202,944.29/13,682.40
  6. Step 6: Final answer
    x = 11,562.51

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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.