Home / 13,475.97-20,217.61-7,636.68

Finding the Fourth Proportional to 13,475.97, 20,217.61 and 7,636.68

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Solution

The fourth proportional to 13,475.97, 20,217.61 and 7,636.68 is: 11,457.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.97 : 20,217.61 = 7,636.68 : x
  2. Step 2: Convert to fraction form
    13,475.97/20,217.61 = 7,636.68/x
  3. Step 3: Cross multiply
    13,475.97x = 20,217.61 × 7,636.68
  4. Step 4: Simplify right side
    13,475.97x = 154,395,474.66
  5. Step 5: Solve for x
    x = 154,395,474.66/13,475.97
  6. Step 6: Final answer
    x = 11,457.09

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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.