Home / 16,515.21-22,789.49-9,799.68

Finding the Fourth Proportional to 16,515.21, 22,789.49 and 9,799.68

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Solution

The fourth proportional to 16,515.21, 22,789.49 and 9,799.68 is: 13,522.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.21 : 22,789.49 = 9,799.68 : x
  2. Step 2: Convert to fraction form
    16,515.21/22,789.49 = 9,799.68/x
  3. Step 3: Cross multiply
    16,515.21x = 22,789.49 × 9,799.68
  4. Step 4: Simplify right side
    16,515.21x = 223,329,660.36
  5. Step 5: Solve for x
    x = 223,329,660.36/16,515.21
  6. Step 6: Final answer
    x = 13,522.67

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Half scale
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Find fourth proportional to 16,516.21, 22,790.86 and 9,800.68
Similar ratio
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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.