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Finding the Fourth Proportional to 8,258.28, 11,394 and 4,721.28

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Solution

The fourth proportional to 8,258.28, 11,394 and 4,721.28 is: 6,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.28 : 11,394 = 4,721.28 : x
  2. Step 2: Convert to fraction form
    8,258.28/11,394 = 4,721.28/x
  3. Step 3: Cross multiply
    8,258.28x = 11,394 × 4,721.28
  4. Step 4: Simplify right side
    8,258.28x = 53,794,264.32
  5. Step 5: Solve for x
    x = 53,794,264.32/8,258.28
  6. Step 6: Final answer
    x = 6,513.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.