Home / 11,849.85-16,353.76-6,815.70

Finding the Fourth Proportional to 11,849.85, 16,353.76 and 6,815.70

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Solution

The fourth proportional to 11,849.85, 16,353.76 and 6,815.70 is: 9,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,849.85 : 16,353.76 = 6,815.70 : x
  2. Step 2: Convert to fraction form
    11,849.85/16,353.76 = 6,815.70/x
  3. Step 3: Cross multiply
    11,849.85x = 16,353.76 × 6,815.70
  4. Step 4: Simplify right side
    11,849.85x = 111,462,322.03
  5. Step 5: Solve for x
    x = 111,462,322.03/11,849.85
  6. Step 6: Final answer
    x = 9,406.22

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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.