Home / 11,300.80-16,951.68-3,509.76

Finding the Fourth Proportional to 11,300.80, 16,951.68 and 3,509.76

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Solution

The fourth proportional to 11,300.80, 16,951.68 and 3,509.76 is: 5,264.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,300.80 : 16,951.68 = 3,509.76 : x
  2. Step 2: Convert to fraction form
    11,300.80/16,951.68 = 3,509.76/x
  3. Step 3: Cross multiply
    11,300.80x = 16,951.68 × 3,509.76
  4. Step 4: Simplify right side
    11,300.80x = 59,496,328.40
  5. Step 5: Solve for x
    x = 59,496,328.40/11,300.80
  6. Step 6: Final answer
    x = 5,264.79

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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.