Home / 8,756.99-13,128.39-5,976.66

Finding the Fourth Proportional to 8,756.99, 13,128.39 and 5,976.66

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Solution

The fourth proportional to 8,756.99, 13,128.39 and 5,976.66 is: 8,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.99 : 13,128.39 = 5,976.66 : x
  2. Step 2: Convert to fraction form
    8,756.99/13,128.39 = 5,976.66/x
  3. Step 3: Cross multiply
    8,756.99x = 13,128.39 × 5,976.66
  4. Step 4: Simplify right side
    8,756.99x = 78,463,923.38
  5. Step 5: Solve for x
    x = 78,463,923.38/8,756.99
  6. Step 6: Final answer
    x = 8,960.15

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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.