Home / 11,927.57-16,459.79-6,622.29

Finding the Fourth Proportional to 11,927.57, 16,459.79 and 6,622.29

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Solution

The fourth proportional to 11,927.57, 16,459.79 and 6,622.29 is: 9,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.57 : 16,459.79 = 6,622.29 : x
  2. Step 2: Convert to fraction form
    11,927.57/16,459.79 = 6,622.29/x
  3. Step 3: Cross multiply
    11,927.57x = 16,459.79 × 6,622.29
  4. Step 4: Simplify right side
    11,927.57x = 109,001,469.61
  5. Step 5: Solve for x
    x = 109,001,469.61/11,927.57
  6. Step 6: Final answer
    x = 9,138.62

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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.