Home / 12,895.37-19,343.05-8,511.80

Finding the Fourth Proportional to 12,895.37, 19,343.05 and 8,511.80

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Solution

The fourth proportional to 12,895.37, 19,343.05 and 8,511.80 is: 12,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.37 : 19,343.05 = 8,511.80 : x
  2. Step 2: Convert to fraction form
    12,895.37/19,343.05 = 8,511.80/x
  3. Step 3: Cross multiply
    12,895.37x = 19,343.05 × 8,511.80
  4. Step 4: Simplify right side
    12,895.37x = 164,644,091.26
  5. Step 5: Solve for x
    x = 164,644,091.26/12,895.37
  6. Step 6: Final answer
    x = 12,767.70

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Similar ratio
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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.