Home / 8,137.36-11,230.76-5,153.48

Finding the Fourth Proportional to 8,137.36, 11,230.76 and 5,153.48

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Solution

The fourth proportional to 8,137.36, 11,230.76 and 5,153.48 is: 7,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.36 : 11,230.76 = 5,153.48 : x
  2. Step 2: Convert to fraction form
    8,137.36/11,230.76 = 5,153.48/x
  3. Step 3: Cross multiply
    8,137.36x = 11,230.76 × 5,153.48
  4. Step 4: Simplify right side
    8,137.36x = 57,877,449.81
  5. Step 5: Solve for x
    x = 57,877,449.81/8,137.36
  6. Step 6: Final answer
    x = 7,112.56

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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.