Home / 12,859.20-19,284.64-4,092.06

Finding the Fourth Proportional to 12,859.20, 19,284.64 and 4,092.06

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Solution

The fourth proportional to 12,859.20, 19,284.64 and 4,092.06 is: 6,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.20 : 19,284.64 = 4,092.06 : x
  2. Step 2: Convert to fraction form
    12,859.20/19,284.64 = 4,092.06/x
  3. Step 3: Cross multiply
    12,859.20x = 19,284.64 × 4,092.06
  4. Step 4: Simplify right side
    12,859.20x = 78,913,903.96
  5. Step 5: Solve for x
    x = 78,913,903.96/12,859.20
  6. Step 6: Final answer
    x = 6,136.77

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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.