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Finding the Fourth Proportional to 8,895.28, 12,269.12 and 6,243.28

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Solution

The fourth proportional to 8,895.28, 12,269.12 and 6,243.28 is: 8,611.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.28 : 12,269.12 = 6,243.28 : x
  2. Step 2: Convert to fraction form
    8,895.28/12,269.12 = 6,243.28/x
  3. Step 3: Cross multiply
    8,895.28x = 12,269.12 × 6,243.28
  4. Step 4: Simplify right side
    8,895.28x = 76,599,551.51
  5. Step 5: Solve for x
    x = 76,599,551.51/8,895.28
  6. Step 6: Final answer
    x = 8,611.26

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1.5x scale

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.