Home / 13,862-20,786.52-4,621.52

Finding the Fourth Proportional to 13,862, 20,786.52 and 4,621.52

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Solution

The fourth proportional to 13,862, 20,786.52 and 4,621.52 is: 6,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862 : 20,786.52 = 4,621.52 : x
  2. Step 2: Convert to fraction form
    13,862/20,786.52 = 4,621.52/x
  3. Step 3: Cross multiply
    13,862x = 20,786.52 × 4,621.52
  4. Step 4: Simplify right side
    13,862x = 96,065,317.91
  5. Step 5: Solve for x
    x = 96,065,317.91/13,862
  6. Step 6: Final answer
    x = 6,930.12

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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.