Home / 12,892.12-19,338.24-5,495.20

Finding the Fourth Proportional to 12,892.12, 19,338.24 and 5,495.20

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Solution

The fourth proportional to 12,892.12, 19,338.24 and 5,495.20 is: 8,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.12 : 19,338.24 = 5,495.20 : x
  2. Step 2: Convert to fraction form
    12,892.12/19,338.24 = 5,495.20/x
  3. Step 3: Cross multiply
    12,892.12x = 19,338.24 × 5,495.20
  4. Step 4: Simplify right side
    12,892.12x = 106,267,496.45
  5. Step 5: Solve for x
    x = 106,267,496.45/12,892.12
  6. Step 6: Final answer
    x = 8,242.83

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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.