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Finding the Fourth Proportional to 9,414.80, 14,112.90 and 5,256.80

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Solution

The fourth proportional to 9,414.80, 14,112.90 and 5,256.80 is: 7,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,414.80 : 14,112.90 = 5,256.80 : x
  2. Step 2: Convert to fraction form
    9,414.80/14,112.90 = 5,256.80/x
  3. Step 3: Cross multiply
    9,414.80x = 14,112.90 × 5,256.80
  4. Step 4: Simplify right side
    9,414.80x = 74,188,692.72
  5. Step 5: Solve for x
    x = 74,188,692.72/9,414.80
  6. Step 6: Final answer
    x = 7,880.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.