Home / 14,213.70-21,320.55-6,814.35

Finding the Fourth Proportional to 14,213.70, 21,320.55 and 6,814.35

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Solution

The fourth proportional to 14,213.70, 21,320.55 and 6,814.35 is: 10,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.70 : 21,320.55 = 6,814.35 : x
  2. Step 2: Convert to fraction form
    14,213.70/21,320.55 = 6,814.35/x
  3. Step 3: Cross multiply
    14,213.70x = 21,320.55 × 6,814.35
  4. Step 4: Simplify right side
    14,213.70x = 145,285,689.89
  5. Step 5: Solve for x
    x = 145,285,689.89/14,213.70
  6. Step 6: Final answer
    x = 10,221.53

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Similar ratio
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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.