Home / 11,416.38-17,123.46-7,742.22

Finding the Fourth Proportional to 11,416.38, 17,123.46 and 7,742.22

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Solution

The fourth proportional to 11,416.38, 17,123.46 and 7,742.22 is: 11,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.38 : 17,123.46 = 7,742.22 : x
  2. Step 2: Convert to fraction form
    11,416.38/17,123.46 = 7,742.22/x
  3. Step 3: Cross multiply
    11,416.38x = 17,123.46 × 7,742.22
  4. Step 4: Simplify right side
    11,416.38x = 132,573,594.48
  5. Step 5: Solve for x
    x = 132,573,594.48/11,416.38
  6. Step 6: Final answer
    x = 11,612.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.