Home / 8,529.36-11,772.36-5,219.28

Finding the Fourth Proportional to 8,529.36, 11,772.36 and 5,219.28

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Solution

The fourth proportional to 8,529.36, 11,772.36 and 5,219.28 is: 7,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.36 : 11,772.36 = 5,219.28 : x
  2. Step 2: Convert to fraction form
    8,529.36/11,772.36 = 5,219.28/x
  3. Step 3: Cross multiply
    8,529.36x = 11,772.36 × 5,219.28
  4. Step 4: Simplify right side
    8,529.36x = 61,443,243.10
  5. Step 5: Solve for x
    x = 61,443,243.10/8,529.36
  6. Step 6: Final answer
    x = 7,203.73

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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.