Home / 12,786.60-17,653.62-8,760.24

Finding the Fourth Proportional to 12,786.60, 17,653.62 and 8,760.24

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Solution

The fourth proportional to 12,786.60, 17,653.62 and 8,760.24 is: 12,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.60 : 17,653.62 = 8,760.24 : x
  2. Step 2: Convert to fraction form
    12,786.60/17,653.62 = 8,760.24/x
  3. Step 3: Cross multiply
    12,786.60x = 17,653.62 × 8,760.24
  4. Step 4: Simplify right side
    12,786.60x = 154,649,948.07
  5. Step 5: Solve for x
    x = 154,649,948.07/12,786.60
  6. Step 6: Final answer
    x = 12,094.69

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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.