Home / 13,839.44-19,093.98-8,174.40

Finding the Fourth Proportional to 13,839.44, 19,093.98 and 8,174.40

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Solution

The fourth proportional to 13,839.44, 19,093.98 and 8,174.40 is: 11,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.44 : 19,093.98 = 8,174.40 : x
  2. Step 2: Convert to fraction form
    13,839.44/19,093.98 = 8,174.40/x
  3. Step 3: Cross multiply
    13,839.44x = 19,093.98 × 8,174.40
  4. Step 4: Simplify right side
    13,839.44x = 156,081,830.11
  5. Step 5: Solve for x
    x = 156,081,830.11/13,839.44
  6. Step 6: Final answer
    x = 11,278.05

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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.