Home / 14,403.25-19,876.49-8,115.85

Finding the Fourth Proportional to 14,403.25, 19,876.49 and 8,115.85

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Solution

The fourth proportional to 14,403.25, 19,876.49 and 8,115.85 is: 11,199.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.25 : 19,876.49 = 8,115.85 : x
  2. Step 2: Convert to fraction form
    14,403.25/19,876.49 = 8,115.85/x
  3. Step 3: Cross multiply
    14,403.25x = 19,876.49 × 8,115.85
  4. Step 4: Simplify right side
    14,403.25x = 161,314,611.37
  5. Step 5: Solve for x
    x = 161,314,611.37/14,403.25
  6. Step 6: Final answer
    x = 11,199.88

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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.