Home / 11,311.51-15,609.50-6,834.47

Finding the Fourth Proportional to 11,311.51, 15,609.50 and 6,834.47

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Solution

The fourth proportional to 11,311.51, 15,609.50 and 6,834.47 is: 9,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.51 : 15,609.50 = 6,834.47 : x
  2. Step 2: Convert to fraction form
    11,311.51/15,609.50 = 6,834.47/x
  3. Step 3: Cross multiply
    11,311.51x = 15,609.50 × 6,834.47
  4. Step 4: Simplify right side
    11,311.51x = 106,682,659.47
  5. Step 5: Solve for x
    x = 106,682,659.47/11,311.51
  6. Step 6: Final answer
    x = 9,431.34

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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.