Home / 14,108.44-19,468.90-8,139.75

Finding the Fourth Proportional to 14,108.44, 19,468.90 and 8,139.75

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Solution

The fourth proportional to 14,108.44, 19,468.90 and 8,139.75 is: 11,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.44 : 19,468.90 = 8,139.75 : x
  2. Step 2: Convert to fraction form
    14,108.44/19,468.90 = 8,139.75/x
  3. Step 3: Cross multiply
    14,108.44x = 19,468.90 × 8,139.75
  4. Step 4: Simplify right side
    14,108.44x = 158,471,978.78
  5. Step 5: Solve for x
    x = 158,471,978.78/14,108.44
  6. Step 6: Final answer
    x = 11,232.42

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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.