Home / 14,208.20-21,318.70-6,809.80

Finding the Fourth Proportional to 14,208.20, 21,318.70 and 6,809.80

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Solution

The fourth proportional to 14,208.20, 21,318.70 and 6,809.80 is: 10,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.20 : 21,318.70 = 6,809.80 : x
  2. Step 2: Convert to fraction form
    14,208.20/21,318.70 = 6,809.80/x
  3. Step 3: Cross multiply
    14,208.20x = 21,318.70 × 6,809.80
  4. Step 4: Simplify right side
    14,208.20x = 145,176,083.26
  5. Step 5: Solve for x
    x = 145,176,083.26/14,208.20
  6. Step 6: Final answer
    x = 10,217.77

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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.