Home / 13,229.94-18,257.28-7,261.50

Finding the Fourth Proportional to 13,229.94, 18,257.28 and 7,261.50

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Solution

The fourth proportional to 13,229.94, 18,257.28 and 7,261.50 is: 10,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.94 : 18,257.28 = 7,261.50 : x
  2. Step 2: Convert to fraction form
    13,229.94/18,257.28 = 7,261.50/x
  3. Step 3: Cross multiply
    13,229.94x = 18,257.28 × 7,261.50
  4. Step 4: Simplify right side
    13,229.94x = 132,575,238.72
  5. Step 5: Solve for x
    x = 132,575,238.72/13,229.94
  6. Step 6: Final answer
    x = 10,020.85

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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.