Home / 13,863.08-19,135.22-9,672.68

Finding the Fourth Proportional to 13,863.08, 19,135.22 and 9,672.68

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Solution

The fourth proportional to 13,863.08, 19,135.22 and 9,672.68 is: 13,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.08 : 19,135.22 = 9,672.68 : x
  2. Step 2: Convert to fraction form
    13,863.08/19,135.22 = 9,672.68/x
  3. Step 3: Cross multiply
    13,863.08x = 19,135.22 × 9,672.68
  4. Step 4: Simplify right side
    13,863.08x = 185,088,859.79
  5. Step 5: Solve for x
    x = 185,088,859.79/13,863.08
  6. Step 6: Final answer
    x = 13,351.21

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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.