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Finding the Fourth Proportional to 10,894, 15,025.48 and 6,911.60

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Solution

The fourth proportional to 10,894, 15,025.48 and 6,911.60 is: 9,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,894 : 15,025.48 = 6,911.60 : x
  2. Step 2: Convert to fraction form
    10,894/15,025.48 = 6,911.60/x
  3. Step 3: Cross multiply
    10,894x = 15,025.48 × 6,911.60
  4. Step 4: Simplify right side
    10,894x = 103,850,107.57
  5. Step 5: Solve for x
    x = 103,850,107.57/10,894
  6. Step 6: Final answer
    x = 9,532.78

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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.