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Finding the Fourth Proportional to 9,323.28, 13,978.44 and 4,388.76

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Solution

The fourth proportional to 9,323.28, 13,978.44 and 4,388.76 is: 6,580.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.28 : 13,978.44 = 4,388.76 : x
  2. Step 2: Convert to fraction form
    9,323.28/13,978.44 = 4,388.76/x
  3. Step 3: Cross multiply
    9,323.28x = 13,978.44 × 4,388.76
  4. Step 4: Simplify right side
    9,323.28x = 61,348,018.33
  5. Step 5: Solve for x
    x = 61,348,018.33/9,323.28
  6. Step 6: Final answer
    x = 6,580.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.