Home / 11,123.15-16,668.32-6,191.46

Finding the Fourth Proportional to 11,123.15, 16,668.32 and 6,191.46

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Solution

The fourth proportional to 11,123.15, 16,668.32 and 6,191.46 is: 9,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.15 : 16,668.32 = 6,191.46 : x
  2. Step 2: Convert to fraction form
    11,123.15/16,668.32 = 6,191.46/x
  3. Step 3: Cross multiply
    11,123.15x = 16,668.32 × 6,191.46
  4. Step 4: Simplify right side
    11,123.15x = 103,201,205.59
  5. Step 5: Solve for x
    x = 103,201,205.59/11,123.15
  6. Step 6: Final answer
    x = 9,278.06

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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.