Home / 8,586.24-11,849.40-6,720

Finding the Fourth Proportional to 8,586.24, 11,849.40 and 6,720

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Solution

The fourth proportional to 8,586.24, 11,849.40 and 6,720 is: 9,273.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.24 : 11,849.40 = 6,720 : x
  2. Step 2: Convert to fraction form
    8,586.24/11,849.40 = 6,720/x
  3. Step 3: Cross multiply
    8,586.24x = 11,849.40 × 6,720
  4. Step 4: Simplify right side
    8,586.24x = 79,627,968
  5. Step 5: Solve for x
    x = 79,627,968/8,586.24
  6. Step 6: Final answer
    x = 9,273.90

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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.