Home / 12,894.43-19,341.91-4,129.32

Finding the Fourth Proportional to 12,894.43, 19,341.91 and 4,129.32

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Solution

The fourth proportional to 12,894.43, 19,341.91 and 4,129.32 is: 6,194.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.43 : 19,341.91 = 4,129.32 : x
  2. Step 2: Convert to fraction form
    12,894.43/19,341.91 = 4,129.32/x
  3. Step 3: Cross multiply
    12,894.43x = 19,341.91 × 4,129.32
  4. Step 4: Simplify right side
    12,894.43x = 79,868,839.09
  5. Step 5: Solve for x
    x = 79,868,839.09/12,894.43
  6. Step 6: Final answer
    x = 6,194.06

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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.