Home / 11,208.47-15,467.81-6,172.79

Finding the Fourth Proportional to 11,208.47, 15,467.81 and 6,172.79

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Solution

The fourth proportional to 11,208.47, 15,467.81 and 6,172.79 is: 8,518.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.47 : 15,467.81 = 6,172.79 : x
  2. Step 2: Convert to fraction form
    11,208.47/15,467.81 = 6,172.79/x
  3. Step 3: Cross multiply
    11,208.47x = 15,467.81 × 6,172.79
  4. Step 4: Simplify right side
    11,208.47x = 95,479,512.03
  5. Step 5: Solve for x
    x = 95,479,512.03/11,208.47
  6. Step 6: Final answer
    x = 8,518.51

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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.