Home / 13,480.75-20,225.11-6,911.54

Finding the Fourth Proportional to 13,480.75, 20,225.11 and 6,911.54

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Solution

The fourth proportional to 13,480.75, 20,225.11 and 6,911.54 is: 10,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.75 : 20,225.11 = 6,911.54 : x
  2. Step 2: Convert to fraction form
    13,480.75/20,225.11 = 6,911.54/x
  3. Step 3: Cross multiply
    13,480.75x = 20,225.11 × 6,911.54
  4. Step 4: Simplify right side
    13,480.75x = 139,786,656.77
  5. Step 5: Solve for x
    x = 139,786,656.77/13,480.75
  6. Step 6: Final answer
    x = 10,369.35

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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.