Home / 11,712.62-17,570.56-4,785.50

Finding the Fourth Proportional to 11,712.62, 17,570.56 and 4,785.50

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Solution

The fourth proportional to 11,712.62, 17,570.56 and 4,785.50 is: 7,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.62 : 17,570.56 = 4,785.50 : x
  2. Step 2: Convert to fraction form
    11,712.62/17,570.56 = 4,785.50/x
  3. Step 3: Cross multiply
    11,712.62x = 17,570.56 × 4,785.50
  4. Step 4: Simplify right side
    11,712.62x = 84,083,914.88
  5. Step 5: Solve for x
    x = 84,083,914.88/11,712.62
  6. Step 6: Final answer
    x = 7,178.92

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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.