Home / 11,836.38-16,337.07-7,119.75

Finding the Fourth Proportional to 11,836.38, 16,337.07 and 7,119.75

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Solution

The fourth proportional to 11,836.38, 16,337.07 and 7,119.75 is: 9,826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.38 : 16,337.07 = 7,119.75 : x
  2. Step 2: Convert to fraction form
    11,836.38/16,337.07 = 7,119.75/x
  3. Step 3: Cross multiply
    11,836.38x = 16,337.07 × 7,119.75
  4. Step 4: Simplify right side
    11,836.38x = 116,315,854.13
  5. Step 5: Solve for x
    x = 116,315,854.13/11,836.38
  6. Step 6: Final answer
    x = 9,826.98

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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.