Home / 13,814.55-20,729.86-5,808.74

Finding the Fourth Proportional to 13,814.55, 20,729.86 and 5,808.74

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Solution

The fourth proportional to 13,814.55, 20,729.86 and 5,808.74 is: 8,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.55 : 20,729.86 = 5,808.74 : x
  2. Step 2: Convert to fraction form
    13,814.55/20,729.86 = 5,808.74/x
  3. Step 3: Cross multiply
    13,814.55x = 20,729.86 × 5,808.74
  4. Step 4: Simplify right side
    13,814.55x = 120,414,354.75
  5. Step 5: Solve for x
    x = 120,414,354.75/13,814.55
  6. Step 6: Final answer
    x = 8,716.49

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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.