Home / 12,722.64-17,556.36-7,057.16

Finding the Fourth Proportional to 12,722.64, 17,556.36 and 7,057.16

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Solution

The fourth proportional to 12,722.64, 17,556.36 and 7,057.16 is: 9,738.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.64 : 17,556.36 = 7,057.16 : x
  2. Step 2: Convert to fraction form
    12,722.64/17,556.36 = 7,057.16/x
  3. Step 3: Cross multiply
    12,722.64x = 17,556.36 × 7,057.16
  4. Step 4: Simplify right side
    12,722.64x = 123,898,015.29
  5. Step 5: Solve for x
    x = 123,898,015.29/12,722.64
  6. Step 6: Final answer
    x = 9,738.39

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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.