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Finding the Fourth Proportional to 9,963, 13,750.26 and 6,436.47

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Solution

The fourth proportional to 9,963, 13,750.26 and 6,436.47 is: 8,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963 : 13,750.26 = 6,436.47 : x
  2. Step 2: Convert to fraction form
    9,963/13,750.26 = 6,436.47/x
  3. Step 3: Cross multiply
    9,963x = 13,750.26 × 6,436.47
  4. Step 4: Simplify right side
    9,963x = 88,503,135.98
  5. Step 5: Solve for x
    x = 88,503,135.98/9,963
  6. Step 6: Final answer
    x = 8,883.18

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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.