Home / 14,211.20-21,322.94-7,629.70

Finding the Fourth Proportional to 14,211.20, 21,322.94 and 7,629.70

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Solution

The fourth proportional to 14,211.20, 21,322.94 and 7,629.70 is: 11,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.20 : 21,322.94 = 7,629.70 : x
  2. Step 2: Convert to fraction form
    14,211.20/21,322.94 = 7,629.70/x
  3. Step 3: Cross multiply
    14,211.20x = 21,322.94 × 7,629.70
  4. Step 4: Simplify right side
    14,211.20x = 162,687,635.32
  5. Step 5: Solve for x
    x = 162,687,635.32/14,211.20
  6. Step 6: Final answer
    x = 11,447.85

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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.