Home / 14,819.86-20,342.51-13,103.68

Finding the Fourth Proportional to 14,819.86, 20,342.51 and 13,103.68

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Solution

The fourth proportional to 14,819.86, 20,342.51 and 13,103.68 is: 17,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.86 : 20,342.51 = 13,103.68 : x
  2. Step 2: Convert to fraction form
    14,819.86/20,342.51 = 13,103.68/x
  3. Step 3: Cross multiply
    14,819.86x = 20,342.51 × 13,103.68
  4. Step 4: Simplify right side
    14,819.86x = 266,561,741.44
  5. Step 5: Solve for x
    x = 266,561,741.44/14,819.86
  6. Step 6: Final answer
    x = 17,986.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.