Home / 8,124.76-11,213.67-5,138.56

Finding the Fourth Proportional to 8,124.76, 11,213.67 and 5,138.56

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Solution

The fourth proportional to 8,124.76, 11,213.67 and 5,138.56 is: 7,092.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.76 : 11,213.67 = 5,138.56 : x
  2. Step 2: Convert to fraction form
    8,124.76/11,213.67 = 5,138.56/x
  3. Step 3: Cross multiply
    8,124.76x = 11,213.67 × 5,138.56
  4. Step 4: Simplify right side
    8,124.76x = 57,622,116.12
  5. Step 5: Solve for x
    x = 57,622,116.12/8,124.76
  6. Step 6: Final answer
    x = 7,092.16

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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.