Home / 7,864.70-11,786.72-3,472.47

Finding the Fourth Proportional to 7,864.70, 11,786.72 and 3,472.47

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Solution

The fourth proportional to 7,864.70, 11,786.72 and 3,472.47 is: 5,204.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.70 : 11,786.72 = 3,472.47 : x
  2. Step 2: Convert to fraction form
    7,864.70/11,786.72 = 3,472.47/x
  3. Step 3: Cross multiply
    7,864.70x = 11,786.72 × 3,472.47
  4. Step 4: Simplify right side
    7,864.70x = 40,929,014.24
  5. Step 5: Solve for x
    x = 40,929,014.24/7,864.70
  6. Step 6: Final answer
    x = 5,204.15

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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.