Home / 11,392.05-17,079.86-7,685.09

Finding the Fourth Proportional to 11,392.05, 17,079.86 and 7,685.09

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Solution

The fourth proportional to 11,392.05, 17,079.86 and 7,685.09 is: 11,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.05 : 17,079.86 = 7,685.09 : x
  2. Step 2: Convert to fraction form
    11,392.05/17,079.86 = 7,685.09/x
  3. Step 3: Cross multiply
    11,392.05x = 17,079.86 × 7,685.09
  4. Step 4: Simplify right side
    11,392.05x = 131,260,137.46
  5. Step 5: Solve for x
    x = 131,260,137.46/11,392.05
  6. Step 6: Final answer
    x = 11,522.08

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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.