Home / 14,136.77-19,512.24-8,172.15

Finding the Fourth Proportional to 14,136.77, 19,512.24 and 8,172.15

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Solution

The fourth proportional to 14,136.77, 19,512.24 and 8,172.15 is: 11,279.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.77 : 19,512.24 = 8,172.15 : x
  2. Step 2: Convert to fraction form
    14,136.77/19,512.24 = 8,172.15/x
  3. Step 3: Cross multiply
    14,136.77x = 19,512.24 × 8,172.15
  4. Step 4: Simplify right side
    14,136.77x = 159,456,952.12
  5. Step 5: Solve for x
    x = 159,456,952.12/14,136.77
  6. Step 6: Final answer
    x = 11,279.59

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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.