Home / 13,651.28-20,448.12-13,495.76

Finding the Fourth Proportional to 13,651.28, 20,448.12 and 13,495.76

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Solution

The fourth proportional to 13,651.28, 20,448.12 and 13,495.76 is: 20,215.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.28 : 20,448.12 = 13,495.76 : x
  2. Step 2: Convert to fraction form
    13,651.28/20,448.12 = 13,495.76/x
  3. Step 3: Cross multiply
    13,651.28x = 20,448.12 × 13,495.76
  4. Step 4: Simplify right side
    13,651.28x = 275,962,919.97
  5. Step 5: Solve for x
    x = 275,962,919.97/13,651.28
  6. Step 6: Final answer
    x = 20,215.17

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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.