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Finding the Fourth Proportional to 11,274.31, 15,549.10 and 8,448.31

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Solution

The fourth proportional to 11,274.31, 15,549.10 and 8,448.31 is: 11,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.31 : 15,549.10 = 8,448.31 : x
  2. Step 2: Convert to fraction form
    11,274.31/15,549.10 = 8,448.31/x
  3. Step 3: Cross multiply
    11,274.31x = 15,549.10 × 8,448.31
  4. Step 4: Simplify right side
    11,274.31x = 131,363,617.02
  5. Step 5: Solve for x
    x = 131,363,617.02/11,274.31
  6. Step 6: Final answer
    x = 11,651.59

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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.