Home / 13,919.85-20,883.42-6,130.49

Finding the Fourth Proportional to 13,919.85, 20,883.42 and 6,130.49

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Solution

The fourth proportional to 13,919.85, 20,883.42 and 6,130.49 is: 9,197.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.85 : 20,883.42 = 6,130.49 : x
  2. Step 2: Convert to fraction form
    13,919.85/20,883.42 = 6,130.49/x
  3. Step 3: Cross multiply
    13,919.85x = 20,883.42 × 6,130.49
  4. Step 4: Simplify right side
    13,919.85x = 128,025,493.06
  5. Step 5: Solve for x
    x = 128,025,493.06/13,919.85
  6. Step 6: Final answer
    x = 9,197.33

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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.