Home / 13,656.21-20,467.31-5,855.91

Finding the Fourth Proportional to 13,656.21, 20,467.31 and 5,855.91

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Solution

The fourth proportional to 13,656.21, 20,467.31 and 5,855.91 is: 8,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.21 : 20,467.31 = 5,855.91 : x
  2. Step 2: Convert to fraction form
    13,656.21/20,467.31 = 5,855.91/x
  3. Step 3: Cross multiply
    13,656.21x = 20,467.31 × 5,855.91
  4. Step 4: Simplify right side
    13,656.21x = 119,854,696.02
  5. Step 5: Solve for x
    x = 119,854,696.02/13,656.21
  6. Step 6: Final answer
    x = 8,776.57

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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.