Home / 11,479.66-17,222.56-9,148.48

Finding the Fourth Proportional to 11,479.66, 17,222.56 and 9,148.48

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Solution

The fourth proportional to 11,479.66, 17,222.56 and 9,148.48 is: 13,725.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.66 : 17,222.56 = 9,148.48 : x
  2. Step 2: Convert to fraction form
    11,479.66/17,222.56 = 9,148.48/x
  3. Step 3: Cross multiply
    11,479.66x = 17,222.56 × 9,148.48
  4. Step 4: Simplify right side
    11,479.66x = 157,560,245.71
  5. Step 5: Solve for x
    x = 157,560,245.71/11,479.66
  6. Step 6: Final answer
    x = 13,725.17

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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.