Home / 12,468.26-18,696.15-4,145.36

Finding the Fourth Proportional to 12,468.26, 18,696.15 and 4,145.36

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Solution

The fourth proportional to 12,468.26, 18,696.15 and 4,145.36 is: 6,215.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.26 : 18,696.15 = 4,145.36 : x
  2. Step 2: Convert to fraction form
    12,468.26/18,696.15 = 4,145.36/x
  3. Step 3: Cross multiply
    12,468.26x = 18,696.15 × 4,145.36
  4. Step 4: Simplify right side
    12,468.26x = 77,502,178.88
  5. Step 5: Solve for x
    x = 77,502,178.88/12,468.26
  6. Step 6: Final answer
    x = 6,215.96

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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.