Home / 14,160.45-21,240.78-4,299.85

Finding the Fourth Proportional to 14,160.45, 21,240.78 and 4,299.85

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Solution

The fourth proportional to 14,160.45, 21,240.78 and 4,299.85 is: 6,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.45 : 21,240.78 = 4,299.85 : x
  2. Step 2: Convert to fraction form
    14,160.45/21,240.78 = 4,299.85/x
  3. Step 3: Cross multiply
    14,160.45x = 21,240.78 × 4,299.85
  4. Step 4: Simplify right side
    14,160.45x = 91,332,040.18
  5. Step 5: Solve for x
    x = 91,332,040.18/14,160.45
  6. Step 6: Final answer
    x = 6,449.80

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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.