Home / 8,756.53-13,129.75-5,986.56

Finding the Fourth Proportional to 8,756.53, 13,129.75 and 5,986.56

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Solution

The fourth proportional to 8,756.53, 13,129.75 and 5,986.56 is: 8,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.53 : 13,129.75 = 5,986.56 : x
  2. Step 2: Convert to fraction form
    8,756.53/13,129.75 = 5,986.56/x
  3. Step 3: Cross multiply
    8,756.53x = 13,129.75 × 5,986.56
  4. Step 4: Simplify right side
    8,756.53x = 78,601,985.35
  5. Step 5: Solve for x
    x = 78,601,985.35/8,756.53
  6. Step 6: Final answer
    x = 8,976.38

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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.