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Finding the Fourth Proportional to 12,963.03, 17,883.36 and 8,244.78

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Solution

The fourth proportional to 12,963.03, 17,883.36 and 8,244.78 is: 11,374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.03 : 17,883.36 = 8,244.78 : x
  2. Step 2: Convert to fraction form
    12,963.03/17,883.36 = 8,244.78/x
  3. Step 3: Cross multiply
    12,963.03x = 17,883.36 × 8,244.78
  4. Step 4: Simplify right side
    12,963.03x = 147,444,368.86
  5. Step 5: Solve for x
    x = 147,444,368.86/12,963.03
  6. Step 6: Final answer
    x = 11,374.22

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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.