Home / 12,213.45-18,307.67-4,814.91

Finding the Fourth Proportional to 12,213.45, 18,307.67 and 4,814.91

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Solution

The fourth proportional to 12,213.45, 18,307.67 and 4,814.91 is: 7,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.45 : 18,307.67 = 4,814.91 : x
  2. Step 2: Convert to fraction form
    12,213.45/18,307.67 = 4,814.91/x
  3. Step 3: Cross multiply
    12,213.45x = 18,307.67 × 4,814.91
  4. Step 4: Simplify right side
    12,213.45x = 88,149,759.29
  5. Step 5: Solve for x
    x = 88,149,759.29/12,213.45
  6. Step 6: Final answer
    x = 7,217.43

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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.