Home / 11,289.54-15,581.39-6,813.96

Finding the Fourth Proportional to 11,289.54, 15,581.39 and 6,813.96

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Solution

The fourth proportional to 11,289.54, 15,581.39 and 6,813.96 is: 9,404.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.54 : 15,581.39 = 6,813.96 : x
  2. Step 2: Convert to fraction form
    11,289.54/15,581.39 = 6,813.96/x
  3. Step 3: Cross multiply
    11,289.54x = 15,581.39 × 6,813.96
  4. Step 4: Simplify right side
    11,289.54x = 106,170,934.13
  5. Step 5: Solve for x
    x = 106,170,934.13/11,289.54
  6. Step 6: Final answer
    x = 9,404.36

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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.