Home / 12,012.50-18,011.30-4,997.43

Finding the Fourth Proportional to 12,012.50, 18,011.30 and 4,997.43

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Solution

The fourth proportional to 12,012.50, 18,011.30 and 4,997.43 is: 7,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.50 : 18,011.30 = 4,997.43 : x
  2. Step 2: Convert to fraction form
    12,012.50/18,011.30 = 4,997.43/x
  3. Step 3: Cross multiply
    12,012.50x = 18,011.30 × 4,997.43
  4. Step 4: Simplify right side
    12,012.50x = 90,010,185.97
  5. Step 5: Solve for x
    x = 90,010,185.97/12,012.50
  6. Step 6: Final answer
    x = 7,493.04

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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.