Home / 14,138.58-19,512.79-8,089.38

Finding the Fourth Proportional to 14,138.58, 19,512.79 and 8,089.38

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Solution

The fourth proportional to 14,138.58, 19,512.79 and 8,089.38 is: 11,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.58 : 19,512.79 = 8,089.38 : x
  2. Step 2: Convert to fraction form
    14,138.58/19,512.79 = 8,089.38/x
  3. Step 3: Cross multiply
    14,138.58x = 19,512.79 × 8,089.38
  4. Step 4: Simplify right side
    14,138.58x = 157,846,373.17
  5. Step 5: Solve for x
    x = 157,846,373.17/14,138.58
  6. Step 6: Final answer
    x = 11,164.23

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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.