Home / 8,172.23-12,247.57-3,239.18

Finding the Fourth Proportional to 8,172.23, 12,247.57 and 3,239.18

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Solution

The fourth proportional to 8,172.23, 12,247.57 and 3,239.18 is: 4,854.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.23 : 12,247.57 = 3,239.18 : x
  2. Step 2: Convert to fraction form
    8,172.23/12,247.57 = 3,239.18/x
  3. Step 3: Cross multiply
    8,172.23x = 12,247.57 × 3,239.18
  4. Step 4: Simplify right side
    8,172.23x = 39,672,006.36
  5. Step 5: Solve for x
    x = 39,672,006.36/8,172.23
  6. Step 6: Final answer
    x = 4,854.49

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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.