Home / 13,143.42-19,716.08-4,136.76

Finding the Fourth Proportional to 13,143.42, 19,716.08 and 4,136.76

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Solution

The fourth proportional to 13,143.42, 19,716.08 and 4,136.76 is: 6,205.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.42 : 19,716.08 = 4,136.76 : x
  2. Step 2: Convert to fraction form
    13,143.42/19,716.08 = 4,136.76/x
  3. Step 3: Cross multiply
    13,143.42x = 19,716.08 × 4,136.76
  4. Step 4: Simplify right side
    13,143.42x = 81,560,670.42
  5. Step 5: Solve for x
    x = 81,560,670.42/13,143.42
  6. Step 6: Final answer
    x = 6,205.44

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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.