Home / 13,256.29-19,887.81-3,896.64

Finding the Fourth Proportional to 13,256.29, 19,887.81 and 3,896.64

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Solution

The fourth proportional to 13,256.29, 19,887.81 and 3,896.64 is: 5,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.29 : 19,887.81 = 3,896.64 : x
  2. Step 2: Convert to fraction form
    13,256.29/19,887.81 = 3,896.64/x
  3. Step 3: Cross multiply
    13,256.29x = 19,887.81 × 3,896.64
  4. Step 4: Simplify right side
    13,256.29x = 77,495,517.04
  5. Step 5: Solve for x
    x = 77,495,517.04/13,256.29
  6. Step 6: Final answer
    x = 5,845.95

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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.