Home / 8,139.05-12,208.57-2,594.09

Finding the Fourth Proportional to 8,139.05, 12,208.57 and 2,594.09

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Solution

The fourth proportional to 8,139.05, 12,208.57 and 2,594.09 is: 3,891.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.05 : 12,208.57 = 2,594.09 : x
  2. Step 2: Convert to fraction form
    8,139.05/12,208.57 = 2,594.09/x
  3. Step 3: Cross multiply
    8,139.05x = 12,208.57 × 2,594.09
  4. Step 4: Simplify right side
    8,139.05x = 31,670,055.34
  5. Step 5: Solve for x
    x = 31,670,055.34/8,139.05
  6. Step 6: Final answer
    x = 3,891.13

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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.