Home / 15,850.35-21,872.90-9,136.26

Finding the Fourth Proportional to 15,850.35, 21,872.90 and 9,136.26

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Solution

The fourth proportional to 15,850.35, 21,872.90 and 9,136.26 is: 12,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.35 : 21,872.90 = 9,136.26 : x
  2. Step 2: Convert to fraction form
    15,850.35/21,872.90 = 9,136.26/x
  3. Step 3: Cross multiply
    15,850.35x = 21,872.90 × 9,136.26
  4. Step 4: Simplify right side
    15,850.35x = 199,836,524.19
  5. Step 5: Solve for x
    x = 199,836,524.19/15,850.35
  6. Step 6: Final answer
    x = 12,607.70

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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.