Home / 19,387.96-29,086.94-8,137.26

Finding the Fourth Proportional to 19,387.96, 29,086.94 and 8,137.26

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Solution

The fourth proportional to 19,387.96, 29,086.94 and 8,137.26 is: 12,207.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.96 : 29,086.94 = 8,137.26 : x
  2. Step 2: Convert to fraction form
    19,387.96/29,086.94 = 8,137.26/x
  3. Step 3: Cross multiply
    19,387.96x = 29,086.94 × 8,137.26
  4. Step 4: Simplify right side
    19,387.96x = 236,688,013.73
  5. Step 5: Solve for x
    x = 236,688,013.73/19,387.96
  6. Step 6: Final answer
    x = 12,207.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.