Home / 12,644.96-18,977.12-5,724.32

Finding the Fourth Proportional to 12,644.96, 18,977.12 and 5,724.32

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Solution

The fourth proportional to 12,644.96, 18,977.12 and 5,724.32 is: 8,590.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.96 : 18,977.12 = 5,724.32 : x
  2. Step 2: Convert to fraction form
    12,644.96/18,977.12 = 5,724.32/x
  3. Step 3: Cross multiply
    12,644.96x = 18,977.12 × 5,724.32
  4. Step 4: Simplify right side
    12,644.96x = 108,631,107.56
  5. Step 5: Solve for x
    x = 108,631,107.56/12,644.96
  6. Step 6: Final answer
    x = 8,590.86

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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.