Home / 8,172.50-11,278.23-4,446.50

Finding the Fourth Proportional to 8,172.50, 11,278.23 and 4,446.50

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Solution

The fourth proportional to 8,172.50, 11,278.23 and 4,446.50 is: 6,136.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.50 : 11,278.23 = 4,446.50 : x
  2. Step 2: Convert to fraction form
    8,172.50/11,278.23 = 4,446.50/x
  3. Step 3: Cross multiply
    8,172.50x = 11,278.23 × 4,446.50
  4. Step 4: Simplify right side
    8,172.50x = 50,148,649.70
  5. Step 5: Solve for x
    x = 50,148,649.70/8,172.50
  6. Step 6: Final answer
    x = 6,136.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.