Home / 13,256.31-19,884-3,395.68

Finding the Fourth Proportional to 13,256.31, 19,884 and 3,395.68

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Solution

The fourth proportional to 13,256.31, 19,884 and 3,395.68 is: 5,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.31 : 19,884 = 3,395.68 : x
  2. Step 2: Convert to fraction form
    13,256.31/19,884 = 3,395.68/x
  3. Step 3: Cross multiply
    13,256.31x = 19,884 × 3,395.68
  4. Step 4: Simplify right side
    13,256.31x = 67,519,651.41
  5. Step 5: Solve for x
    x = 67,519,651.41/13,256.31
  6. Step 6: Final answer
    x = 5,093.40

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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.