Home / 13,839.03-19,100.30-8,173.39

Finding the Fourth Proportional to 13,839.03, 19,100.30 and 8,173.39

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Solution

The fourth proportional to 13,839.03, 19,100.30 and 8,173.39 is: 11,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.03 : 19,100.30 = 8,173.39 : x
  2. Step 2: Convert to fraction form
    13,839.03/19,100.30 = 8,173.39/x
  3. Step 3: Cross multiply
    13,839.03x = 19,100.30 × 8,173.39
  4. Step 4: Simplify right side
    13,839.03x = 156,114,160.15
  5. Step 5: Solve for x
    x = 156,114,160.15/13,839.03
  6. Step 6: Final answer
    x = 11,280.72

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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.