Home / 11,007.75-15,192.36-7,031.51

Finding the Fourth Proportional to 11,007.75, 15,192.36 and 7,031.51

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Solution

The fourth proportional to 11,007.75, 15,192.36 and 7,031.51 is: 9,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.75 : 15,192.36 = 7,031.51 : x
  2. Step 2: Convert to fraction form
    11,007.75/15,192.36 = 7,031.51/x
  3. Step 3: Cross multiply
    11,007.75x = 15,192.36 × 7,031.51
  4. Step 4: Simplify right side
    11,007.75x = 106,825,212.27
  5. Step 5: Solve for x
    x = 106,825,212.27/11,007.75
  6. Step 6: Final answer
    x = 9,704.55

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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.