Home / 15,103.38-20,836.98-11,133.96

Finding the Fourth Proportional to 15,103.38, 20,836.98 and 11,133.96

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Solution

The fourth proportional to 15,103.38, 20,836.98 and 11,133.96 is: 15,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.38 : 20,836.98 = 11,133.96 : x
  2. Step 2: Convert to fraction form
    15,103.38/20,836.98 = 11,133.96/x
  3. Step 3: Cross multiply
    15,103.38x = 20,836.98 × 11,133.96
  4. Step 4: Simplify right side
    15,103.38x = 231,998,101.84
  5. Step 5: Solve for x
    x = 231,998,101.84/15,103.38
  6. Step 6: Final answer
    x = 15,360.67

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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.