Home / 14,207.01-21,305.39-4,208.78

Finding the Fourth Proportional to 14,207.01, 21,305.39 and 4,208.78

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Solution

The fourth proportional to 14,207.01, 21,305.39 and 4,208.78 is: 6,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207.01 : 21,305.39 = 4,208.78 : x
  2. Step 2: Convert to fraction form
    14,207.01/21,305.39 = 4,208.78/x
  3. Step 3: Cross multiply
    14,207.01x = 21,305.39 × 4,208.78
  4. Step 4: Simplify right side
    14,207.01x = 89,669,571.75
  5. Step 5: Solve for x
    x = 89,669,571.75/14,207.01
  6. Step 6: Final answer
    x = 6,311.64

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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.