Home / 8,379.52-11,557.26-6,140.56

Finding the Fourth Proportional to 8,379.52, 11,557.26 and 6,140.56

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Solution

The fourth proportional to 8,379.52, 11,557.26 and 6,140.56 is: 8,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.52 : 11,557.26 = 6,140.56 : x
  2. Step 2: Convert to fraction form
    8,379.52/11,557.26 = 6,140.56/x
  3. Step 3: Cross multiply
    8,379.52x = 11,557.26 × 6,140.56
  4. Step 4: Simplify right side
    8,379.52x = 70,968,048.47
  5. Step 5: Solve for x
    x = 70,968,048.47/8,379.52
  6. Step 6: Final answer
    x = 8,469.23

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1.5x scale

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.