Home / 13,625.29-18,785.55-9,141.94

Finding the Fourth Proportional to 13,625.29, 18,785.55 and 9,141.94

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Solution

The fourth proportional to 13,625.29, 18,785.55 and 9,141.94 is: 12,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.29 : 18,785.55 = 9,141.94 : x
  2. Step 2: Convert to fraction form
    13,625.29/18,785.55 = 9,141.94/x
  3. Step 3: Cross multiply
    13,625.29x = 18,785.55 × 9,141.94
  4. Step 4: Simplify right side
    13,625.29x = 171,736,370.97
  5. Step 5: Solve for x
    x = 171,736,370.97/13,625.29
  6. Step 6: Final answer
    x = 12,604.24

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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.