Home / 8,541.36-11,782.44-5,182.20

Finding the Fourth Proportional to 8,541.36, 11,782.44 and 5,182.20

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Solution

The fourth proportional to 8,541.36, 11,782.44 and 5,182.20 is: 7,148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.36 : 11,782.44 = 5,182.20 : x
  2. Step 2: Convert to fraction form
    8,541.36/11,782.44 = 5,182.20/x
  3. Step 3: Cross multiply
    8,541.36x = 11,782.44 × 5,182.20
  4. Step 4: Simplify right side
    8,541.36x = 61,058,960.57
  5. Step 5: Solve for x
    x = 61,058,960.57/8,541.36
  6. Step 6: Final answer
    x = 7,148.62

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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.