Home / 13,500.99-20,242.65-6,480.81

Finding the Fourth Proportional to 13,500.99, 20,242.65 and 6,480.81

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Solution

The fourth proportional to 13,500.99, 20,242.65 and 6,480.81 is: 9,716.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.99 : 20,242.65 = 6,480.81 : x
  2. Step 2: Convert to fraction form
    13,500.99/20,242.65 = 6,480.81/x
  3. Step 3: Cross multiply
    13,500.99x = 20,242.65 × 6,480.81
  4. Step 4: Simplify right side
    13,500.99x = 131,188,768.55
  5. Step 5: Solve for x
    x = 131,188,768.55/13,500.99
  6. Step 6: Final answer
    x = 9,716.97

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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.