Home / 13,519.73-20,279.65-4,159.57

Finding the Fourth Proportional to 13,519.73, 20,279.65 and 4,159.57

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Solution

The fourth proportional to 13,519.73, 20,279.65 and 4,159.57 is: 6,239.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.73 : 20,279.65 = 4,159.57 : x
  2. Step 2: Convert to fraction form
    13,519.73/20,279.65 = 4,159.57/x
  3. Step 3: Cross multiply
    13,519.73x = 20,279.65 × 4,159.57
  4. Step 4: Simplify right side
    13,519.73x = 84,354,623.75
  5. Step 5: Solve for x
    x = 84,354,623.75/13,519.73
  6. Step 6: Final answer
    x = 6,239.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.