Home / 14,431.48-19,914.39-8,378.96

Finding the Fourth Proportional to 14,431.48, 19,914.39 and 8,378.96

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Solution

The fourth proportional to 14,431.48, 19,914.39 and 8,378.96 is: 11,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.48 : 19,914.39 = 8,378.96 : x
  2. Step 2: Convert to fraction form
    14,431.48/19,914.39 = 8,378.96/x
  3. Step 3: Cross multiply
    14,431.48x = 19,914.39 × 8,378.96
  4. Step 4: Simplify right side
    14,431.48x = 166,861,777.66
  5. Step 5: Solve for x
    x = 166,861,777.66/14,431.48
  6. Step 6: Final answer
    x = 11,562.35

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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.