Home / 13,941.81-20,910.87-5,175.54

Finding the Fourth Proportional to 13,941.81, 20,910.87 and 5,175.54

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Solution

The fourth proportional to 13,941.81, 20,910.87 and 5,175.54 is: 7,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.81 : 20,910.87 = 5,175.54 : x
  2. Step 2: Convert to fraction form
    13,941.81/20,910.87 = 5,175.54/x
  3. Step 3: Cross multiply
    13,941.81x = 20,910.87 × 5,175.54
  4. Step 4: Simplify right side
    13,941.81x = 108,225,044.12
  5. Step 5: Solve for x
    x = 108,225,044.12/13,941.81
  6. Step 6: Final answer
    x = 7,762.63

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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.