Home / 14,073.60-21,107.70-4,213.20

Finding the Fourth Proportional to 14,073.60, 21,107.70 and 4,213.20

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Solution

The fourth proportional to 14,073.60, 21,107.70 and 4,213.20 is: 6,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,073.60 : 21,107.70 = 4,213.20 : x
  2. Step 2: Convert to fraction form
    14,073.60/21,107.70 = 4,213.20/x
  3. Step 3: Cross multiply
    14,073.60x = 21,107.70 × 4,213.20
  4. Step 4: Simplify right side
    14,073.60x = 88,930,961.64
  5. Step 5: Solve for x
    x = 88,930,961.64/14,073.60
  6. Step 6: Final answer
    x = 6,318.99

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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.