Home / 13,975.92-20,969.64-10,296.72

Finding the Fourth Proportional to 13,975.92, 20,969.64 and 10,296.72

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Solution

The fourth proportional to 13,975.92, 20,969.64 and 10,296.72 is: 15,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.92 : 20,969.64 = 10,296.72 : x
  2. Step 2: Convert to fraction form
    13,975.92/20,969.64 = 10,296.72/x
  3. Step 3: Cross multiply
    13,975.92x = 20,969.64 × 10,296.72
  4. Step 4: Simplify right side
    13,975.92x = 215,918,511.58
  5. Step 5: Solve for x
    x = 215,918,511.58/13,975.92
  6. Step 6: Final answer
    x = 15,449.32

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1.5x scale

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.