Home / 12,844.08-17,724.84-7,179.06

Finding the Fourth Proportional to 12,844.08, 17,724.84 and 7,179.06

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Solution

The fourth proportional to 12,844.08, 17,724.84 and 7,179.06 is: 9,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,844.08 : 17,724.84 = 7,179.06 : x
  2. Step 2: Convert to fraction form
    12,844.08/17,724.84 = 7,179.06/x
  3. Step 3: Cross multiply
    12,844.08x = 17,724.84 × 7,179.06
  4. Step 4: Simplify right side
    12,844.08x = 127,247,689.85
  5. Step 5: Solve for x
    x = 127,247,689.85/12,844.08
  6. Step 6: Final answer
    x = 9,907.11

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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.