Home / 9,136.86-13,705.78-2,896.42

Finding the Fourth Proportional to 9,136.86, 13,705.78 and 2,896.42

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Solution

The fourth proportional to 9,136.86, 13,705.78 and 2,896.42 is: 4,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.86 : 13,705.78 = 2,896.42 : x
  2. Step 2: Convert to fraction form
    9,136.86/13,705.78 = 2,896.42/x
  3. Step 3: Cross multiply
    9,136.86x = 13,705.78 × 2,896.42
  4. Step 4: Simplify right side
    9,136.86x = 39,697,654.53
  5. Step 5: Solve for x
    x = 39,697,654.53/9,136.86
  6. Step 6: Final answer
    x = 4,344.78

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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.