Home / 14,286.84-21,430.42-3,898.60

Finding the Fourth Proportional to 14,286.84, 21,430.42 and 3,898.60

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Solution

The fourth proportional to 14,286.84, 21,430.42 and 3,898.60 is: 5,847.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.84 : 21,430.42 = 3,898.60 : x
  2. Step 2: Convert to fraction form
    14,286.84/21,430.42 = 3,898.60/x
  3. Step 3: Cross multiply
    14,286.84x = 21,430.42 × 3,898.60
  4. Step 4: Simplify right side
    14,286.84x = 83,548,635.41
  5. Step 5: Solve for x
    x = 83,548,635.41/14,286.84
  6. Step 6: Final answer
    x = 5,847.94

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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.