Home / 13,495.71-20,242.77-5,175.39

Finding the Fourth Proportional to 13,495.71, 20,242.77 and 5,175.39

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Solution

The fourth proportional to 13,495.71, 20,242.77 and 5,175.39 is: 7,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.71 : 20,242.77 = 5,175.39 : x
  2. Step 2: Convert to fraction form
    13,495.71/20,242.77 = 5,175.39/x
  3. Step 3: Cross multiply
    13,495.71x = 20,242.77 × 5,175.39
  4. Step 4: Simplify right side
    13,495.71x = 104,764,229.43
  5. Step 5: Solve for x
    x = 104,764,229.43/13,495.71
  6. Step 6: Final answer
    x = 7,762.78

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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.