Home / 13,429.13-18,517.26-9,180.89

Finding the Fourth Proportional to 13,429.13, 18,517.26 and 9,180.89

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Solution

The fourth proportional to 13,429.13, 18,517.26 and 9,180.89 is: 12,659.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.13 : 18,517.26 = 9,180.89 : x
  2. Step 2: Convert to fraction form
    13,429.13/18,517.26 = 9,180.89/x
  3. Step 3: Cross multiply
    13,429.13x = 18,517.26 × 9,180.89
  4. Step 4: Simplify right side
    13,429.13x = 170,004,834.58
  5. Step 5: Solve for x
    x = 170,004,834.58/13,429.13
  6. Step 6: Final answer
    x = 12,659.41

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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.