Home / 13,425.67-18,519.97-12,475.35

Finding the Fourth Proportional to 13,425.67, 18,519.97 and 12,475.35

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Solution

The fourth proportional to 13,425.67, 18,519.97 and 12,475.35 is: 17,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.67 : 18,519.97 = 12,475.35 : x
  2. Step 2: Convert to fraction form
    13,425.67/18,519.97 = 12,475.35/x
  3. Step 3: Cross multiply
    13,425.67x = 18,519.97 × 12,475.35
  4. Step 4: Simplify right side
    13,425.67x = 231,043,107.74
  5. Step 5: Solve for x
    x = 231,043,107.74/13,425.67
  6. Step 6: Final answer
    x = 17,209.06

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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.