Home / 13,880.04-20,820.33-5,110.44

Finding the Fourth Proportional to 13,880.04, 20,820.33 and 5,110.44

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Solution

The fourth proportional to 13,880.04, 20,820.33 and 5,110.44 is: 7,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.04 : 20,820.33 = 5,110.44 : x
  2. Step 2: Convert to fraction form
    13,880.04/20,820.33 = 5,110.44/x
  3. Step 3: Cross multiply
    13,880.04x = 20,820.33 × 5,110.44
  4. Step 4: Simplify right side
    13,880.04x = 106,401,047.25
  5. Step 5: Solve for x
    x = 106,401,047.25/13,880.04
  6. Step 6: Final answer
    x = 7,665.76

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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.