Home / 15,850.84-21,874.12-9,136.42

Finding the Fourth Proportional to 15,850.84, 21,874.12 and 9,136.42

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Solution

The fourth proportional to 15,850.84, 21,874.12 and 9,136.42 is: 12,608.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.84 : 21,874.12 = 9,136.42 : x
  2. Step 2: Convert to fraction form
    15,850.84/21,874.12 = 9,136.42/x
  3. Step 3: Cross multiply
    15,850.84x = 21,874.12 × 9,136.42
  4. Step 4: Simplify right side
    15,850.84x = 199,851,147.45
  5. Step 5: Solve for x
    x = 199,851,147.45/15,850.84
  6. Step 6: Final answer
    x = 12,608.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.