Home / 11,835.38-16,337.49-7,118.75

Finding the Fourth Proportional to 11,835.38, 16,337.49 and 7,118.75

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Solution

The fourth proportional to 11,835.38, 16,337.49 and 7,118.75 is: 9,826.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.38 : 16,337.49 = 7,118.75 : x
  2. Step 2: Convert to fraction form
    11,835.38/16,337.49 = 7,118.75/x
  3. Step 3: Cross multiply
    11,835.38x = 16,337.49 × 7,118.75
  4. Step 4: Simplify right side
    11,835.38x = 116,302,506.94
  5. Step 5: Solve for x
    x = 116,302,506.94/11,835.38
  6. Step 6: Final answer
    x = 9,826.68

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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.