Home / 11,125.79-16,694.43-4,890.17

Finding the Fourth Proportional to 11,125.79, 16,694.43 and 4,890.17

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Solution

The fourth proportional to 11,125.79, 16,694.43 and 4,890.17 is: 7,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.79 : 16,694.43 = 4,890.17 : x
  2. Step 2: Convert to fraction form
    11,125.79/16,694.43 = 4,890.17/x
  3. Step 3: Cross multiply
    11,125.79x = 16,694.43 × 4,890.17
  4. Step 4: Simplify right side
    11,125.79x = 81,638,571.24
  5. Step 5: Solve for x
    x = 81,638,571.24/11,125.79
  6. Step 6: Final answer
    x = 7,337.78

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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.