Home / 12,844.45-17,724.98-7,179.22

Finding the Fourth Proportional to 12,844.45, 17,724.98 and 7,179.22

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Solution

The fourth proportional to 12,844.45, 17,724.98 and 7,179.22 is: 9,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,844.45 : 17,724.98 = 7,179.22 : x
  2. Step 2: Convert to fraction form
    12,844.45/17,724.98 = 7,179.22/x
  3. Step 3: Cross multiply
    12,844.45x = 17,724.98 × 7,179.22
  4. Step 4: Simplify right side
    12,844.45x = 127,251,442.29
  5. Step 5: Solve for x
    x = 127,251,442.29/12,844.45
  6. Step 6: Final answer
    x = 9,907.12

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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.