Home / 13,446.24-20,171.52-5,657.28

Finding the Fourth Proportional to 13,446.24, 20,171.52 and 5,657.28

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Solution

The fourth proportional to 13,446.24, 20,171.52 and 5,657.28 is: 8,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.24 : 20,171.52 = 5,657.28 : x
  2. Step 2: Convert to fraction form
    13,446.24/20,171.52 = 5,657.28/x
  3. Step 3: Cross multiply
    13,446.24x = 20,171.52 × 5,657.28
  4. Step 4: Simplify right side
    13,446.24x = 114,115,936.67
  5. Step 5: Solve for x
    x = 114,115,936.67/13,446.24
  6. Step 6: Final answer
    x = 8,486.83

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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.