Home / 13,892.12-19,173.60-7,844.20

Finding the Fourth Proportional to 13,892.12, 19,173.60 and 7,844.20

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Solution

The fourth proportional to 13,892.12, 19,173.60 and 7,844.20 is: 10,826.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.12 : 19,173.60 = 7,844.20 : x
  2. Step 2: Convert to fraction form
    13,892.12/19,173.60 = 7,844.20/x
  3. Step 3: Cross multiply
    13,892.12x = 19,173.60 × 7,844.20
  4. Step 4: Simplify right side
    13,892.12x = 150,401,553.12
  5. Step 5: Solve for x
    x = 150,401,553.12/13,892.12
  6. Step 6: Final answer
    x = 10,826.39

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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.