Home / 13,141.29-18,134.97-8,425.57

Finding the Fourth Proportional to 13,141.29, 18,134.97 and 8,425.57

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Solution

The fourth proportional to 13,141.29, 18,134.97 and 8,425.57 is: 11,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.29 : 18,134.97 = 8,425.57 : x
  2. Step 2: Convert to fraction form
    13,141.29/18,134.97 = 8,425.57/x
  3. Step 3: Cross multiply
    13,141.29x = 18,134.97 × 8,425.57
  4. Step 4: Simplify right side
    13,141.29x = 152,797,459.18
  5. Step 5: Solve for x
    x = 152,797,459.18/13,141.29
  6. Step 6: Final answer
    x = 11,627.28

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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.