Home / 12,859.13-19,287.32-4,093.36

Finding the Fourth Proportional to 12,859.13, 19,287.32 and 4,093.36

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Solution

The fourth proportional to 12,859.13, 19,287.32 and 4,093.36 is: 6,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.13 : 19,287.32 = 4,093.36 : x
  2. Step 2: Convert to fraction form
    12,859.13/19,287.32 = 4,093.36/x
  3. Step 3: Cross multiply
    12,859.13x = 19,287.32 × 4,093.36
  4. Step 4: Simplify right side
    12,859.13x = 78,949,963.19
  5. Step 5: Solve for x
    x = 78,949,963.19/12,859.13
  6. Step 6: Final answer
    x = 6,139.60

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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.