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Finding the Fourth Proportional to 9,951.88, 13,718.87 and 6,366.45

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Solution

The fourth proportional to 9,951.88, 13,718.87 and 6,366.45 is: 8,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,951.88 : 13,718.87 = 6,366.45 : x
  2. Step 2: Convert to fraction form
    9,951.88/13,718.87 = 6,366.45/x
  3. Step 3: Cross multiply
    9,951.88x = 13,718.87 × 6,366.45
  4. Step 4: Simplify right side
    9,951.88x = 87,340,466.23
  5. Step 5: Solve for x
    x = 87,340,466.23/9,951.88
  6. Step 6: Final answer
    x = 8,776.28

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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.