Home / 11,556.27-17,317.80-7,171.20

Finding the Fourth Proportional to 11,556.27, 17,317.80 and 7,171.20

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Solution

The fourth proportional to 11,556.27, 17,317.80 and 7,171.20 is: 10,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.27 : 17,317.80 = 7,171.20 : x
  2. Step 2: Convert to fraction form
    11,556.27/17,317.80 = 7,171.20/x
  3. Step 3: Cross multiply
    11,556.27x = 17,317.80 × 7,171.20
  4. Step 4: Simplify right side
    11,556.27x = 124,189,407.36
  5. Step 5: Solve for x
    x = 124,189,407.36/11,556.27
  6. Step 6: Final answer
    x = 10,746.50

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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.