Home / 14,716.80-20,308.68-8,427.96

Finding the Fourth Proportional to 14,716.80, 20,308.68 and 8,427.96

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Solution

The fourth proportional to 14,716.80, 20,308.68 and 8,427.96 is: 11,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,716.80 : 20,308.68 = 8,427.96 : x
  2. Step 2: Convert to fraction form
    14,716.80/20,308.68 = 8,427.96/x
  3. Step 3: Cross multiply
    14,716.80x = 20,308.68 × 8,427.96
  4. Step 4: Simplify right side
    14,716.80x = 171,160,742.69
  5. Step 5: Solve for x
    x = 171,160,742.69/14,716.80
  6. Step 6: Final answer
    x = 11,630.30

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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.