Home / 11,208.60-16,829.10-7,936.20

Finding the Fourth Proportional to 11,208.60, 16,829.10 and 7,936.20

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Solution

The fourth proportional to 11,208.60, 16,829.10 and 7,936.20 is: 11,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.60 : 16,829.10 = 7,936.20 : x
  2. Step 2: Convert to fraction form
    11,208.60/16,829.10 = 7,936.20/x
  3. Step 3: Cross multiply
    11,208.60x = 16,829.10 × 7,936.20
  4. Step 4: Simplify right side
    11,208.60x = 133,559,103.42
  5. Step 5: Solve for x
    x = 133,559,103.42/11,208.60
  6. Step 6: Final answer
    x = 11,915.77

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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.