Home / 8,155.30-11,255.01-4,619.14

Finding the Fourth Proportional to 8,155.30, 11,255.01 and 4,619.14

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Solution

The fourth proportional to 8,155.30, 11,255.01 and 4,619.14 is: 6,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.30 : 11,255.01 = 4,619.14 : x
  2. Step 2: Convert to fraction form
    8,155.30/11,255.01 = 4,619.14/x
  3. Step 3: Cross multiply
    8,155.30x = 11,255.01 × 4,619.14
  4. Step 4: Simplify right side
    8,155.30x = 51,988,466.89
  5. Step 5: Solve for x
    x = 51,988,466.89/8,155.30
  6. Step 6: Final answer
    x = 6,374.81

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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.