Home / 11,722.92-17,582.39-5,147.34

Finding the Fourth Proportional to 11,722.92, 17,582.39 and 5,147.34

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Solution

The fourth proportional to 11,722.92, 17,582.39 and 5,147.34 is: 7,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.92 : 17,582.39 = 5,147.34 : x
  2. Step 2: Convert to fraction form
    11,722.92/17,582.39 = 5,147.34/x
  3. Step 3: Cross multiply
    11,722.92x = 17,582.39 × 5,147.34
  4. Step 4: Simplify right side
    11,722.92x = 90,502,539.34
  5. Step 5: Solve for x
    x = 90,502,539.34/11,722.92
  6. Step 6: Final answer
    x = 7,720.14

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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.