Home / 12,892.28-17,790.41-7,226.98

Finding the Fourth Proportional to 12,892.28, 17,790.41 and 7,226.98

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Solution

The fourth proportional to 12,892.28, 17,790.41 and 7,226.98 is: 9,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.28 : 17,790.41 = 7,226.98 : x
  2. Step 2: Convert to fraction form
    12,892.28/17,790.41 = 7,226.98/x
  3. Step 3: Cross multiply
    12,892.28x = 17,790.41 × 7,226.98
  4. Step 4: Simplify right side
    12,892.28x = 128,570,856.65
  5. Step 5: Solve for x
    x = 128,570,856.65/12,892.28
  6. Step 6: Final answer
    x = 9,972.71

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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.