Home / 13,446.42-20,175.44-5,128.94

Finding the Fourth Proportional to 13,446.42, 20,175.44 and 5,128.94

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Solution

The fourth proportional to 13,446.42, 20,175.44 and 5,128.94 is: 7,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.42 : 20,175.44 = 5,128.94 : x
  2. Step 2: Convert to fraction form
    13,446.42/20,175.44 = 5,128.94/x
  3. Step 3: Cross multiply
    13,446.42x = 20,175.44 × 5,128.94
  4. Step 4: Simplify right side
    13,446.42x = 103,478,494.71
  5. Step 5: Solve for x
    x = 103,478,494.71/13,446.42
  6. Step 6: Final answer
    x = 7,695.62

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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.