Home / 13,690.26-20,518.92-6,284.52

Finding the Fourth Proportional to 13,690.26, 20,518.92 and 6,284.52

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Solution

The fourth proportional to 13,690.26, 20,518.92 and 6,284.52 is: 9,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.26 : 20,518.92 = 6,284.52 : x
  2. Step 2: Convert to fraction form
    13,690.26/20,518.92 = 6,284.52/x
  3. Step 3: Cross multiply
    13,690.26x = 20,518.92 × 6,284.52
  4. Step 4: Simplify right side
    13,690.26x = 128,951,563.12
  5. Step 5: Solve for x
    x = 128,951,563.12/13,690.26
  6. Step 6: Final answer
    x = 9,419.22

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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.