Home / 13,446.88-20,155.38-10,149.28

Finding the Fourth Proportional to 13,446.88, 20,155.38 and 10,149.28

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Solution

The fourth proportional to 13,446.88, 20,155.38 and 10,149.28 is: 15,212.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.88 : 20,155.38 = 10,149.28 : x
  2. Step 2: Convert to fraction form
    13,446.88/20,155.38 = 10,149.28/x
  3. Step 3: Cross multiply
    13,446.88x = 20,155.38 × 10,149.28
  4. Step 4: Simplify right side
    13,446.88x = 204,562,595.13
  5. Step 5: Solve for x
    x = 204,562,595.13/13,446.88
  6. Step 6: Final answer
    x = 15,212.64

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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.