Home / 13,136.32-19,700.11-4,249.54

Finding the Fourth Proportional to 13,136.32, 19,700.11 and 4,249.54

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Solution

The fourth proportional to 13,136.32, 19,700.11 and 4,249.54 is: 6,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.32 : 19,700.11 = 4,249.54 : x
  2. Step 2: Convert to fraction form
    13,136.32/19,700.11 = 4,249.54/x
  3. Step 3: Cross multiply
    13,136.32x = 19,700.11 × 4,249.54
  4. Step 4: Simplify right side
    13,136.32x = 83,716,405.45
  5. Step 5: Solve for x
    x = 83,716,405.45/13,136.32
  6. Step 6: Final answer
    x = 6,372.90

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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.